The History of Diamonds

The History of Diamonds 

The first know discovery of diamonds dated back over 2,300 years ago in the Indian region of Golconda, and up until 1725, India was the only notorious country to have a source of diamonds.

In 1725 a diamond-producing area in the State of Minas Gerais, Brazil was discovered by gold miners along the banks of the Jequitinhonha River.  And by 1760 Brazil was producing almost half of the world’s supply of diamonds resulting in the value of diamond falling by more than 60%. However, diamond value increased sharply in the late 1800’s when Brazilian diamond mining dramatically decreased

The first diamond discovered in South Africa was from an alluvial deposit and dated back to 1866 when Erasmus Jacobs, a 15-year-old boy, found a 21.25 carats stone along the south bank of the Orange River on his father’s farm. Over the course of the next few years, South Africa produced more diamonds than India presented in more than 2,000 years.


Diamonds are supposed to be forever

Experts estimate that more than 30 major diamond mines will cease to exist by the year 2030. Australia’s Argyle mine is the third largest diamond mine by volume in the world and will close its operations by 2020. Diamond reserves of three major mines in South Africa, the Kimberly, Venetia and Voorspoed are expected to cease by 2025.

Reports estimate the world’s supply of NATURAL diamonds will decrease by approximately 50% in 2030 with reserves declining in 2020.

To think that maybe one day the Earth will no longer be able to provide the world with this precious gemstone and can you imagine how expensive a natural diamond might be if our planet were exhausted of all supplies?

The rarest and most expensive diamond today is the Pink Star Diamond weighing in at 59.6 carats. This fabulous diamond is valued at $72 million, equivalent to $1,208,053.69 per carat.
What will it be worth in 30 years time?


It’s disturbing for me to think that our Mother Earth is running out of NATURAL diamond reserves.

As the world’s supply of NATURAL diamonds diminishes, what will happen to the market?

If you have diamonds do you sell them now or do you hang onto them and purchase more?

Could NATURAL diamonds now be a good investment?

What are your thoughts?

Most Brilliant Diamond Cut

Most Brilliant Diamond Cut

Most Brilliant Diamond Cut

The most important characteristic (C) in a diamond is a diamond’s cut. And if you want a stone to produce head-turning flashes at the party then choose a most brilliant diamond cut. The Most Brilliant Cut Diamond gives you that magic and sparkle at the party.

The cut is the dominant factor determining brilliance, fire and how efficient light is reflected, refracted and distributed within the crystal. A brilliant cut diamond does turn heads!!!

The structured mathematical formula for creating the most brilliant diamond cut provides the foundation for diamond cutters (diamantaires) to achieve maximum brilliance and fire. Excellent symmetrical proportions and an outstanding polish finish are vital aspects of a brilliant diamond.

most brilliant diamond cut

The first thing we naturally see in a diamond is scintillation, best described as the intensity of sparkles a crystal produces when rotated at different angles. A poor diamond cut can create a lifeless and dull stone no matter how good the colour and clarity ratings are. So If you want maximum scintillation, then select a brilliant round cut stone.


TOLKOWSKY- Mathematical Genius 

On Christmas day in December 1899, a genius by the name of Marcel Tolkowsky was born in Antwerp Belgium.

Raised in a family of diamond cutters, Marcel chose to study engineering, and in 1919, he mathematically calculated the specifications required for a diamond to display maximum brilliance and fire without losing light through the bottom and sides.

And today, Mr. Tolkowsky’s specs are still the benchmark for diamantaires.

Marcel Tolkowsky died aged 92 in New York City on February 10, 1991.


The Brilliant Round Cut

Marcel Tolkowsky’s calculations provide diamantaires with the critical specifications to produce maximum brilliance and fire. Achieving these results requires a diamond to be expertly cut in Facets featuring excellent symmetry with perfect proportions.

The Ideal Cut controls the path of light and achieves maximum brilliance or fire without light passing through the bottom or sides.

Most Brilliant Diamond Cut
Round Brilliant Diamond Cut Symmetry
  • Table specification is 53% – 57% proportional
  • A table of 53% produces more fire
  • A table of 57% provides more brilliance

Brilliant Round Cut Diamond

 

 

 

TOP – CROWN          

BOTTOM  – PAVILLION

Kite Facets are also known as Bezel Facets

 

 


Ideal round brilliant diamond cut
Light reflection in a Brilliant Round Cut compared with light leakage in shallow and deep cuts

Additional Points to Consider

There are many different diamond shapes on the market and some are very fancy. However, none match the ability to maximize light reflection like the most popular diamond shape, the brilliant round Tolkowsky cut. BUT in saying this, look for HIGH-GRADE QUALITY CUTS. It is no good looking for a round diamond if it is a poor cut. You will regret it so don’t waste your money on poor cuts.

  • The Brilliant Round Cut compliments all finger and hand shapes, unlike some other cuts. For instance, the Pear and Marquise best highlight longer and slender fingers.
  • Diamond shapes such as the Heart, Pear, and Marquise need to be exact in symmetry and proportions. The halves must be identical and mirror each other.
  • Heart shapes should be a minimum 0.50 carat. If the Heart is too small, the visual definition of the Heart will most likely be lost.
  • Diamonds are the hardest natural substance on the planet but can break when struck at the right angle. Hardness refers to the resistance to being scratched by another material and not how hard it is to break. Cleavage and culets can be exposed to danger.
  • The Princess cut is characterized with squares and rectangles having sharp edges. The cleavage on the edges is more vulnerable to breaking.
  • The Emerald displays a large table which can highlight inclusions.

DIAMOND SHAPES

Cuts Diamonds Shapes

 

 

 

 

 

 

 

 

 

 

 

 

Round Brilliant
The Round most Brilliant Cut Diamond is the most popular diamond. excellent cuts bring out the brilliance and fire.

Princess
Cut in both square and rectangular shapes. Unique colour display in all corners of the stone.

Cushion
The Cushion cut appears in the shape of a pillow and characterized by brilliance, clarity, larger cut facets, and rounded corners.

Heart
Symbol of dedicated love. Popular in both rings and pendants. Symmetry is vital for heart shape as both halves need to be identical. It can be difficult to identify a small Heart shape stone under 0.50 carats.

Pear
A teardrop shape from combining Round and Marquise cuts. A slender and delicate look. Ideal for longer fingers. Cut to display brilliance. Symmetry is essential in this cut.

Marquise
Highlight slender fingers. Excellent symmetry is critical for the look of a Marquise. The two ends must align with each other, and the two halves must be identical.

Radiant
The Radiant has the characteristics of both a Cushion and the Princess cut. If you take a look at the diagram above you will notice the attributes of both the Cushion and Princess.

Asscher
A similar cut shaped diamond to a Square Emerald cut. First produced in 1902 (Asscher brothers).

Emerald
The Emerald features step-cut rectangular facets in the pavilion and has a large rectangular table showcasing its colour and clarity. The large table highlights visible inclusions that can be seen by the naked eye.

Oval
A popular shape, similar to the brilliance of the round cut and goes well with all types of jewelry.


Please Click to watch a short video on Diamond CuttingDiamond Cutter - Amsterdam

MY REVIEW 

We have confirmed that the Cut (1) is the dominant characteristic in a diamond followed by Colour (2) Clarity (3) and Carat weight (4).

We have established that Tolkowsky’s specifications for a Brilliant Round Cut Diamond maximize brilliance and fire.

SUMMARY

  • The cut is the most critical characteristic in a diamond stone.
  • The Brilliant Round Cut provides for maximum Brilliance, Fire, and Scintillation.
  • The round most Brilliant Diamond Cut is the best choice for all budgets.
  • Consider an excellent cut with a lower grade clarity if your on a tight budget.
  • For the ladies, you do want to flash and sparkle at the party – RIGHT?
  • And for the guys, you do want that flash for the cash – CORRECT?
  • And you both don’t want to regret a poor decision in years to come, do you?

WHAT ARE YOUR THOUGHTS?

And if you have any comments or questions please feel free to leave a message. It will be nice to hear your thoughts.

And whatever the occasion, I wish you the very best!!!

Black Opal Stones Sale - Black Opal Stone - Black Opal Jewelry - Black Opal Rings - Opals - Precious Gemstones - Beads, Baubles and Jewels - Jewelry - Pearl Necklace Sale - Beauty - Fashion - Style

brad@opalsnjewels.com

Sell your Diamond Online

SELL YOUR DIAMOND ONLINE

Are there any boundaries to the internet? I don’t think so, and in today’s age, you can do just about anything on the internet. Shopping, researching, watching videos, the list goes on and on and on. You can even sell your diamond online safely and securely and I am going to show you how!

Studying gems is an ongoing assignment as more enhanced diamonds enters the market. My regular review of diamonds keeps me up to date and gives me a very good idea of what I think is best for you. I practice what I preach, and my advice to you is the same advice I give to my family and friends, and you could be my friend.  Regrettably, a friend of mine did not listen to what I had to say and sold their stone through an online classified advertising agent. The result, a lot of haggling with potential buyers and not receiving the true value of the diamond ring.

In one of my posts, I recommend you purchase a most brilliant diamond cut through an online dealer. In this post, I suggest you sell your diamond online to a team of experts who offer you the fastest and safest way to get the possible price for your diamond… and I am pretty sure this is what you want – CORRECT?

I would not sell a diamond or any valuable(s) through online classified advertising or auctions as it is unlikely you will get near the real value of your stone.
You can read my review on how to sell your diamond online at the bottom of this page.

Sell your diamond online

 

 

 


A REAL LIFE CASE

A friend of mine asked my advice on how to sell a diamond ring that had a certified value of Aud $28,000.00.
My immediate question was “Do you know a reputable dealer you can trust?” his reply was no. So I suggested he make contact with a highly reputable company I know who expertise in the purchase of diamonds and valuable jewellery.
I gave this information to my friend, but unfortunately, my friend did not heed my advice and sold the ring through online classified advertising and only received Aud $5,000.00. The deal reluctantly completed and the ring was gone. A very disappointing result with a lot of hassling in the process. 

You can read my review and critical information on the bottom of this page on why I strongly recommend one particular company of experts who specialise in purchasing diamonds and valuables and offer the fastest, safest, easiest, and hassle-free way to get the best possible price for your diamond. 


DIVORCE

I am guessing that many of you who are reading this post have been affected or are going through a relationship breakdown. Divorce or a canceled wedding, either way, it is sad and an unpleasant experience. But you are not alone, there are many people in the world experiencing what you are experiencing right now, and one of them is me. I never thought it would happen, but it did.
So what did I do? Well, I figured that life is too short to be wasting away. I was born for a purpose in life, and I am not going to sit around feeling sorry for myself. It is time to move on and not look backward and be positive in life.

While going through the separation, I researched some statistics regarding divorce that surprisingly made me feel more fortunate than others. I dug out some alarming statistics from a post by Audrey M. Jones, Attorney, Historical Divorce Rate Statistics.


Divorce Rate Statistics in the 1940s                                             

Divorce

  • 1940 – 20%
  • 1941 – 22%
  • 1942 – 24%
  • 1943 – 26%
  • 1944 – 29%
  • 1945 – 35%
  • 1946 – 43%
  • 1947 – 34%
  • 1948 – 28%
  • 1949 – 27%


World War 11 – destroyed lives and relationships! 
These statistics are pretty sad because as you can see, there 
was a noticeable spike in divorce right after World War 11. World War 11 ended on May 8, 1945, and it is evident the war not only destroyed human lives but relationships as well. Soldiers coming back home, mentally scarred or incapacitated from the conflict of war. Issues that most probably created a lot of strain on relationships within the family unit. Many women found jobs while their men were at war and may have been reluctant to give up their new found freedom. Anyway, whatever the reasons were the war had an impact on the divorce rates, and as you can see in 1946, the divorce rate was as high as 43%.

When I look back in history and see what others have endured through times of hardship, especially the conflict of war, it gives me a healthy positive attitude to make the most out of life and move forward.


MOVING FORWARD

Moving forward after divorce

By moving forward, you will be eliminating as many of those memories as you possibly can. If you can remove all of them well, that’s just where you want to be. You can start the process by getting rid of that ring. It no longer has sentimental value only monetary value. So go on take the money. Cruise the Caribbean, Sizzle in Vegas, Swim with Marine Life on the Great Barrier Reef, just go out and enjoy life!!! There is so much out there, and you don’t want to miss it, right?

I study diamonds on an ongoing basis, and you may have stumbled across a few of my suggestions for buying a diamond in one of my other posts.  But in this case, we are selling a diamond and not buying one. It is now time to move forward and I would like to offer you my advice on the best way you can take that step forward by selling your diamond ring.

We, including myself, have gone through the process of divorce or a relationship breakdown and now its time to get rid of that ring. But in saying that we’re not going to sell it out of desperation either. We want a smooth and honest deal without the hassles.
So let’s move forward and head in the right direction and see what I believe is our best option.


MY REVIEW

The jewelry business is just like anything else in life where you have the good and the not so good.
There are plenty of rip-offs out there, and this is why I strongly recommend you sell your diamond
online through 
WP DIAMONDS who provide you with:

  • Excellent customer service

  • Smooth, trouble-free transactions

  • Fast and efficient transactions

  • Safe and secure transactions

  • Top dollar without the hassles

  • Free Shipping

  • 100% trust guarantee

  • BBB Accredited Business A+, American Gem Society Accredited

  • A company with an outstanding reputation

  • An excellent overall experience

  • A HAPPY EXPERIENCE

    Some of the WP Diamonds customer comments
    “the best service experience I have had in a very long time”
    ” I received the highest instant offer”
    “at least 55% more than locally quoted”
    “offered way more than any other jeweler previously visited”
    “the entire process took less than 48 hours

Watch video: The fastest and safest way to get the best possible price for your diamond

 

 

 

 

 

 


If I have missed anything that you can think of that can help others then please leave a comment. Life is about helping each other.
If you would like to leave a comment and express your opinion(s) then please do so. 

Hopefully, you will take that step forward and I wish you all the very best in the process!!!

Opals n Jewels

 

 

 

brad@opalsnjewels.com

Diamond Clarity Color Chart

DIAMOND CLARITY COLOR CHART

Clarity and Color are two of the four characteristics (4 c’s) used in determining a diamond’s value. So let’s have a look at a diamond clarity color chart and find out how these characteristics are graded.

Round brilliant diamond

A Diamond’s Cut is the most important characteristic in a diamond and now we will view the other three characteristics, Color, Clarity, and Carat weight.

 

 


DIAMOND | COLOR 

The Color of a diamond is the second most important characteristic influencing value.
Color rates second because it is the second feature we naturally see after experiencing the brilliance, fire, and scintillation displayed by an excellent or ideal cut.

There are a variety of colors within the structure of a diamond stone which includes whites, pinks, blues, and yellows.
Yellows have a lower value, with an exception, while a white diamond will reflect more light and color, and be more valuable.
As a general rule the less color in a diamond the higher the value. Grading is based on a lack of color and scales down from the highest D grade to a yellow Z.
D grade color diamonds are extremely rare and expensive, and if you are on a budget and after an almost colorless diamond, G grade offers exceptional value.

The exception mentioned above relates to a particular canary yellow colored diamond that has single nitrogen atoms. These diamonds are exquisite and extremely expensive as are the blues, reds and pinks.

 

Diamond color grading scale
Diamond color grading scale

 

Diamond color chart
Argyle pink diamond colour chart

DIAMOND | CLARITY 

Clarity is the third most important characteristic in a diamond and refers to the size and number of imperfections present in a stone.

Almost all diamonds have one or more imperfections. Diamonds without a flaw are very rare and expensive.

Diamonds form deep in the Earth’s mantle under extreme heat and pressure and deposit onto Earth’s surface through the violent action of volcanic eruptions. As a result, almost all diamonds have some sort of imperfection(s), commonly referred to as birthmarks. Internal flaws are called inclusions, external or surface are called blemishes.

Clarity determines value because it can affect light travelling through the diamond. Larger and more numerous imperfections have less brilliance because light does not refract as well as stones having fewer flaws.

Diamond clarity grading scale

 

FL – Flawless / no visible inclusions or blemishes under 10x magnification, <1% of diamonds.
IF Internally Flawless / Very slight blemishes under 10x magnification, <3% of diamonds.

VVS1 – Very, Very Slightly Included / few microscopic flaws very difficult to view under 10x magnification.
VVS2Very, Very Slightly Included / Slightly more tiny imperfections difficult to view under 10x magnification.

VS1 Very Slightly Included / minor inclusions somewhat difficult to see under 10x magnification and located to the outer rim of the diamond.
VS2Very Slightly Included / minor inclusions the same size as VS1 but located more towards the centre and sometimes within the table. Inclusions towards the girdle will be a bit larger in size or formation than a VS1.

SI1 – Slightly Included / inclusions that are fairly easy to see with 10x magnification but not quite visible without a loupe.
SI2Slightly Included /the most common diamond clarity on the market. Properly graded the SI2 clarity diamond still requires magnification to identify any inclusions. Inclusions can be anywhere in the stone, from the table to the girdle. However, you should not be able to see any inclusions with the unaided eye.

Other categories – (not recommended) 

I1 – Included / flaws that are obvious under 10x magnification and visible to the unaided eye but do not impact on the strength or beauty of the stone.

I2 – Included /Inclusions either affect the durability of the diamond or the beauty.

I3 – Included /Inclusions that affect both the durability and beauty of the stone.



Enhanced Color and Clarity Treatments

There are other methods used to enhance a diamond’s appearance. Methods that should be disclosed to the buyer before purchase. You will notice I said the word should. By law, you have to be informed but that is not always the case as mentioned above regarding rogue dealers and some online auction sales. Treatment can synthetically enhance diamond clarity and color. Irradiated diamonds, for example, are genuine diamonds that have been exposed to active radiation to enhance color. These crystals display strong colors such as green, black, pink, blue, etc.! If you know what to look for and have the right tools you can identify irradiated diamonds. But please stay away from Irradiated Diamonds, they are Dangerous and we want to sparkle not glow!!! I am sure you wouldn’t see Superman flying through the air wearing a kryptonite ring.
Other diamond enhancement treatments include color coating, fracture filling, laser drilling and exposure to high-pressure high-temperature processes.


DIAMOND | CARATS 

 

Round brilliant diamond

 

The last characteristic you need to consider when selecting the diamond of your choice is the weight.
The unit of weight measurement for a diamond is a Carat (ct).
A Carat weighs 0.2 g, (200 mg), or the equivalent to 0.00705479 of an ounce.

For example, a diamond weighing 90 mg is 0.45 ct  (90 ÷ 200 = .45).

It is rare to find a rough stone large enough to produce a one carat diamond. Larger diamonds are extremely rare and dramatically increase in price. For example, a three-carat stone will be more than three times the price times compared to one carat.

All 4’C’s determine the quality and value of a diamond with the cut clearly the winner. From excellent cuts to poor cuts, the differences in color, the number and size of imperfections, all having an effect on the stone’s price.


Summary

  • If purchasing a ring select a shape that best suits the physical features of the person who will wear the ring. Consider hand, finger, size, length and shape.
  • Not all patterns are suitable for every finger and hand.
  • Choose the ideal cut. I would much rather buy a smaller excellent cut diamond than a large poor cut diamond. You do want the sparkle – right?
  • Identifying any color in G – H coloured diamonds is tough. They are less expensive than rare colourless stones and offer great value.
    I – J are near colorless and have just a very slight tone of warmth about them. They are also a good choice for value.
  • SI quality diamonds are the less expensive in clarity value and have only slight inclusions visible without magnification.
  • Weight will depend on budget and the characteristics you have selected.
  • Small heart shaped diamonds under 0.50 carat have little definition. The heart shape is lost in the stone and is not well recognised. You may wish to choose a round brilliant stone.

A diamond ring will most likely be worn for a lifetime so you want that scintillating captivating sparkle day after day. Choose quality before size. You don’t want to make a decision you will regret later on in life! and if you wish to view my advice please click my review and recommendations, it could save you thousands.

What are your thoughts and what’s are your preferences in a diamond?


Black Opal Stones Sale - Black Opal Stone - Black Opal Jewelry - Black Opal Rings - Opals - Precious Gemstones - Beads, Baubles and Jewels - Jewelry - Pearl Necklace Sale - Beauty - Fashion - Style
World of Colour and Beauty

 

Identify Real Diamond

IDENTIFY REAL DIAMOND

The most common question asked when buying buy a diamond is “How do you Identify Real diamond? Can you tell if the diamond is real?
Diamonds are costly, and you want to make sure you have the real McCoy, RIGHT? So ask yourself this question, do you honestly know the difference between real diamonds vs fake diamonds?

If you can identify real diamond, there’s no fooling you! But if you can’t, which not many people can, I just hope you avoid crossing paths with a rogue dealer ready to rip you off with a fake (faux) or an underweight stone. And yes you should be careful because they are out there ready to pounce.

Let’s say, for instance, we have a diamond stone set in a ring and valued at $10,000 a carat. It is selling as a one carat stone, and it appears the size of one carat, but in fact, it is only 0.87 carat because it is a shallow cut not visible due to the fact it is set in the ring. The real value should be $8,700.00, but the consumer is paying $10,000.00 and cheated 0.13 of a carat equating to a shortfall of $1,300.00. Do you know how to tell if this diamond is underweight? I am pretty sure not many people could tell. And can you recognise faux which is a stone that looks like a real diamond but made from a different material? When a faux is extremely well-made the only way, we can identify it’s authenticity is to test it. Cubic zirconia and moissanite are the most famous of all the fakes.

ONLINE
To avoid being stung by unscrupulous dealers, I recommend the reputable online dealers who are noted for credibility and offer a 100% guarantee. You need PROTECTION!!!.
In my opinion, this is a better and more secure option if you are not sure about diamond quality and authenticity unless you have a real association and relationship with a dealer, you can trust.
For more information, my diamond review and recommendations are at the bottom of this page.

Real vs Fake Diamonds, Most Brilliant Diamond Cut

 

 

 

 

 

Most Brilliant Diamond Cut

Real Diamond

 

 

 

 

 

 

 

 



METHODS USED TO IDENTIFY REAL DIAMOND

The Fog Test:
Breathe on a clean stone and make it fog. If it’s a real diamond, the fog will disperse immediately. If it is fake, the fog will stay for a couple of seconds and if you repeatedly breathe on a fake, you will see condensation accumulate. The real diamond is a good heat conductor and you can use a fake for comparison if you have one handy.

Check the Transparency:
If it’s a loose stone (unmounted), turn it upside down on printed paper and try to see through it. On viewing, if the letters are visible; it is most likely fake. If the letters are not visible, then there’s a good chance it’s a genuine diamond.

Check the mount:
It is most unlikely you will find a real diamond set in a cheap material. Check the setting for the gold, platinum or silver identification stamp.
CZ stands for cubic zirconia which is an imitation.
Gold: 9K – 10K – 14K – 18K.
Look for any discoloration which could signal it is gold plated.
Platinum: 850 (85%) – 900 (90%) – 950 (95%) – 999 (99.9%).
Silver: S925 (92.5%) sterling silver – 999 pure silver.
Gold is magnetic, platinum and silver are not magnetic.
Use an acid testing kit: This can mark jewellery, so it is best to use it on a section of the jewellery that cannot be seen.

Cubic zirconia

 

 

Cubic zirconia

Photo – Gregory Phillips

 

 

 

 

Hydrogen Peroxide:
Fill a glass with hydrogen peroxide, drop the jewellery into the glass making sure the jewellery is fully submerged, then wait for a reaction. Platinum is an active catalyst for hydrogen peroxide and will bubble immediately. Silver is a weaker catalyst and requires a longer time to see a response which can take up to a minute for small bubbles to develop.
This method will not corrode or damage your jewellery.

Loupe:
All diamonds contain imperfections within their structure (inclusions) or on their surface (blemishes). Inclusions are the birthmark of the stone, and visible under a loupe. A loupe is a 10x jeweller’s magnifying glass and can pick out the perfection of cubic zirconia and moissanite rings. The scale to which these imperfections are present is the diamond’s clarity. Using loupe magnification can help identify a moissanite. If you view a diamond through one of its bezel or star facets on the crown and it appears to have two of each facet line then it is most likely a moissanite.
Natural diamond will only display one of each facet line, as will cubic zirconia (CZ). Magnification is required to identify the difference between real diamond from a CZ. The girdle of a real diamond will have a grainy or frosted appearance whereas a CZ will be totally smooth. The girdle of diamond is the narrow edge around its circumference.

Heat Test:
Beware, this will most likely destroy your jewellery if it’s fake but will not break a diamond due to its incredible strength. This test involves heating a loose stone over a naked flame for about 30 seconds and then dropping it straight into a bowl of cold water. A fake diamond will most likely crack or shatter from the inside whereas a real stone will not react at all.

Diamond Tester:
Diamond testers identify diamonds from all other stones except moissanite. Gemstones have different rates of thermal conduction; however, diamonds and moissanite are both very efficient in conducting heat and need to be tested individually for identification. To be sure we have a real diamond we need to perform a moissanite test on the stone.

 

Let’s work out the best solution to be sure we have a real diamond

  1. We have used the diamond tester and identified it is possibly a diamond or it is not a diamond.
  2. If the test shows up a diamond, then it is either a diamond or moissanite.
  3. Next – verify the stone on a moissanite tester, if it tests moissanite, then you have a diamond. Moissanite testers measure electrical conductivity. Diamonds do not have free electrons and are poor electrical conductors, whereas moissanite is electrically conductive.

Please note: there is a rare form of diamond that has a chemical composition comprising boron atoms making it electrically conductive. It will test as moissanite on the moissanite tester. These diamonds are rare and total less than 0.001% of diamonds.

 



Enhanced Diamonds – RADIATION

There are other methods used to enhance a diamond’s appearance. Methods that should be disclosed to the buyer before purchase. You will notice I said the word should. By law, you have to be informed but that is not always the case as mentioned above regarding rogue dealers and some online auction sales. Treatment can synthetically enhance diamond clarity and colour. Irradiated diamonds, for example, are genuine diamonds that have been exposed to active radiation to enhance colour. These crystals display strong colours such as green, black, pink, blue, etc.! If you know what to look for and have the right tools you can identify irradiated diamonds. Please stay away from IRRADIATED DIAMONDS, they can be DANGEROUS and we want to sparkle not glow!!! I am sure you wouldn’t see Superman flying through the air with a kryptonite ring on his finger.
Other diamond enhancement treatments include colour coating, fracture filling, laser drilling and exposure to high-pressure high-temperature processes.

 


 

Please click on this link my diamond review and recommendations. It may well save you thousands and the peace of mind knowing that the advertised described stone you wish to purchase is the one you’ll receive. Diamonds are supposed to be forever and worn for a lifetime. It would be a great disappointment if you found out years down the track that your stone is a fake, or underweight, or enhanced in any way if you did not previously know on the original purchase.

If you have a suggestion for identifying real diamonds, please leave a comment as your comment may also help others.

 

 

brad@opalsnjewels.com

What is a Diamond Stone?

what is a diamond stone

What is a Diamond Stone? – Marilyn’s Rock

Remember the famous 1949 song made famous by the late and great Marilyn Monroe, “Diamonds are a Girl’s Best Friend.” The association between her and a Diamond showcasing the glamour, the beauty, the sparkle, the elegance, and the fame. But why is this Diamond stone so famous and posses the power to have the entire world under her spell? What is she made of? What is a Diamond stone?

A Diamond Stone is a crystalline mineral made of carbon and forms in a cubic crystal system

Diamonds contain many covalent bonds with each carbon atom chemically bonding to four other carbon atoms in a triangular pyramid (tetrahedron). This makes a Diamond so incredibly strong. A Diamond’s extremely high melting point >3500 °C / 6332 °F is the result of covalent bonding.

Diamond is technically an allotrope of carbon and is the hardest naturally occurring material found on the planet.
Graphite is also an allotrope of carbon but has a different bonding arrangement between atoms.


ALLOTROPES ARE DIFFERENT MATERIALS FORMED FROM THE SAME ELEMENT

Allotropes of carbon
Allotropes of carbon

                 
                    ALLOTROPES OF CARBON

                    A) DIAMOND

                    B) GRAPHITE
                    the closest natural material to a diamond

                    C) LONSDALEITE

                    D) C60 (Buckminsterfullerene)

                    E) C540 (Fullerene)

                    F) C70 (Fullerene)

                    G) AMORPHOUS CARBON

                    H) SINGLE – WALLED CARBON NANOTUBE


Diamond Hardness

Diamonds are the hardest natural substance on our planet. However, this doesn’t mean they won’t break because hardness is only a measurement to identify a mineral’s resistance to scratching.

In 1812 the Mohs Scale of Mineral Hardness was created by a Geman geologist by the name of Friedrich Mohs. Mohs compared the hardness of minerals and the ability of one mineral to visibly scratch another.

The Mohs Scale of Mineral Hardness comprises ten minerals with talc being the softest and Diamond the hardest. The Mohs Scale only goes to (10), so please bear in mind that Diamonds are far harder than their nearest rival which is corundum at (9). However to give you a better perception of how hard a Diamond really is, if it the scale went to 40 then a Diamond would be 40 and its next nearest rival corundum remaining at 9.

 

The order of the Mohs Scale from softest to hardest:

  • (1) Talc
  • (2) Gypsum
  • (3) Calcite
  • (4) Fluorite
  • (5) Apatite
  • (6) Orthoclase
  • (7) Quartz
  • (8) Topaz
  • (9) Corundum
  • (10) Diamond

 

 


Violent Volcanic Eruptions

Diamonds deposit on the Earth’s surface as a result of deep-sourced volcanic eruptions pushing Magma (molten rock) upwards through volcanic pipes (kimberlite and lamproite). These violent volcanic eruptions occur at depths twice as deep as your average volcano and originate approximately 150 km or 90 miles down in the Earth’s mantle. Diamond travels at speeds exceeding 800 km an hour, along with other volatile compounds, and deposit onto the surface of the Earth within a magmatic rock called kimberlite.

A Diamond is a xenocryst which is a crystal inclusion within an igneous rock.

Kimberlite volcanic pipe
Kimberlite volcanic pipe

Diamond formation requires the presence of extreme heat >1400 °C / 2552 °F, and an enormous amount of pressure exceeding speeds of 800 km an hour (500 mph) through volcanic pipes to reach the Earth’s surface. The speed of the upwards propulsion is what determines whether it is Diamond or graphite.


Finding Diamond 

Kimberlite ore (magmatic rock), deposits in depths of at least 15 m, or 49 ft underground, from the result of these violent volcanic eruptions and the only way to remove the ore, is by digging.

So when it comes to mining for deposits of commercially useful Diamonds, near the Earth’s surface, Open-Cut Mining is the preferred method of extraction.

Natural and artificial features of a geographical area determine the size and shape of an open cut mine. Some of these features include the physical structure and substance of the earth, the grade (cut-off), the extent of deposits, property boundaries, bench height, road grades, the slope of the pits, and mining and processing costs.

Argyle diamond mine
Argyle diamond mine | by piesgardiner Argyle diamond mine | Aerial view of Argyle Open-Cut Mine

A photo of Rio Tinto’s Argyle Diamond mine in Western Australia where stones are crushed, screened, X-rayed sorted, separated, acid washed and shipped.


UNDERGROUND MINING

Another method used to extract Diamond from the Earth is underground mining.

Underground mining can be accessed in three ways:

Decline – A type of ramp that spirals around the deposit.

A decline underground mine

Vertical Shaft – A vertical excavation adjoining a body of ore.

Vertical Mine Shaft

AditHorizontal excavations used for bodies of ore that are horizontal or near-horizontal.

Adit mine

Horizontal levels are dug out off the decline or shaft to gain access to the body of ore. A series of steps or layers (stopes) are excavated into the rock at an angle of 90°, or thereabouts, to the level into the ore. This action is known as stoping, a process of extraction where cavities known as stopes are left behind in the underground mine.


TOP TEN DIAMOND MINES IN THE WORLD

Jubilee – the biggest Diamond mine in the world – Russia (Yakutia region)

Udachny – one of the deepest open pits (630m) – Russia (Yakutia region)

Argyle – Australia (Western Australia)

Mirny – Russia (Yakutia region)

Catoca  Angola

Venetia – Limpopo province of South Africa

Grib – Russia (Arkhangelsk region)

Jwaneng – considered the richest mine in terms of value -Botswana

Orapa – Botswana

Botuobinskaya – Russia (Yakutia region)


ALLUVIAL MINING

Alluvial Diamond deposits emerge from the natural processes of erosion and weathering of kimberlite over millions of years. These deposits end up in river beds, under the ocean or on shorelines.

Twelve miles off Namibia’s southern coastline and 150 metres below the sea, Diamond miners are working to secure their future. The large Diamond company (De Beers) is building up a naval fleet in a joint operation with the Namibian government to protect its future and interests. De Beers estimates that 95% of its Diamonds will eventually be sourced from the seabed off Africa’s south-west coast in the future.

Below is a picture of the DeBeers ship Peace in Africa the largest remote-controlled deep-sea dredge in the world.

Dredging for Diamonds
Peace of Africa – Diamond Dredging ship

If you have an experience or a thought you would like to share please leave a comment or send a message.

If you require additional information or want to ask a question just send a message and I’ll be happy to respond.

For information on the best Diamond to buy please click on this link most brilliant diamond cut.

And thank you, for stopping by.

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