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Black Diamond – Carbonado
Black Diamonds are much older than white diamonds or colored diamonds on earth. But their discovery is recent since it dates from the middle of the 19th century (discover out more) and the interest of the public and jewelers is even more.
The first black diamonds were uses in jewelry only in the 20th century. And it is only very recently that they have started to increase in value on the gemstone market. View of rough black diamonds in their natural form and a black diamond cut for use in jewelry making.
Origin and Composition of Black Diamonds
While the diamond formation process is well knows and understood by scientists and gemologists. The origin of black diamonds is still shrouding in mystery.
Indeed, white and colored diamonds (there are blue, yellow, green, and pink diamonds…) are forms in the bowels of the earth under very high temperature and pressure conditions. Between 150 and 250 kilometers from depth in the Earth’s mantle.
Therefore, only volcanic eruptions are likely to “bring” these diamonds to the surface. This is why we find diamonds always associated with kimberlite, a volcanic rock.
But the case of the black diamond differs
Rough black diamonds are locates outside volcanic rocks and black diamond mines are scattered on Earth. So the most recent scientific ideas place the formation of black diamonds in space.
They would therefore have arrived on Earth brought by meteorites during the formation of the latter more than 2 billion years ago. To discover more about it, see this article.
The world’s two main sources of black diamonds are currently Brazil and the Central African Republic. Once stuck together when a single continent, Pangea, emerged from the waters 200 million years ago.
Composition of the Natural Black Diamond
Still, the natural black diamond differs not only in its color but also in its composition from other diamonds.
The latter is composing of a regular crystal lattice of carbon atoms allowing light to pass through. While black diamonds are a very porous aggregate of diamond microcrystals with inclusions of graphite and hematite.
Therefore the natural black diamond is as hard as other diamonds. But its composition makes it even more difficult to cut than other translucent diamonds.
The absence of a cleavage plane makes its size more complex, which translates into a high rate of loss. When buying rough black diamonds to make faceted polished black diamonds. These characteristics explain why it is a rare and expensive gemstone.
The Treated Black Diamond Engagement Ring
Much more conventional, common, and above all economical. The black diamond that is most often founds in jewelry is a diamond (white or colored) that has been treats to become black.
In the past, this treatment consisted of heating the diamond. Whereas the most modern and most commonly used technique now is treatment by irradiation.
These commercial-grade diamonds have been irradiates. They are commonly uses for tessellations on white gold jewelry rings.
These diamonds are much more economical since they are generally diamonds that have many inclusions or colors. That are not very valuable on the market (colors K, L, M, etc.)
How to Recognize a Natural Black Diamond?
It is the behavior of the black diamond treated with the light which will betray its nature. By directing an intense light source on an edge of the black diamond you are observing. You will see that the diamond appears dark green and not black. This is the imprint of the radiation treatment of the diamond.
For this, an optical fiber is normally used to apply the light to a specific location on the edge of the diamond.
Natural black diamonds are opaque by nature and therefore do not allow this phenomenon to be observing.
What are the quality and value criteria determining their price?
Because of its opacity, the famous 4C rule used to assess the quality of white or fancy diamonds is not valid.
Indeed, the value of its diamonds depends particularly on the evaluation of their color, the number, and visibility of inclusions. And the quality of the cut, three criteria that have no meaning in the case of black diamonds. So we use the quality scale from A, AA to AAA, the latter value designating the diamonds of the best quality.
So what do we look at to assess the quality of a black diamond?
To evaluate a black diamond, it is necessary to look at the homogeneity of the color on all the faces and the polished state of the latter. To make sure that they do not contain pores or scratches.
If you plan to buy an untreated natural black diamond, given its price. Choose to opt for a certification report from an independent laboratory.
How Much is a 1 Carat Diamond Right Now?
To get an idea of the price of the black diamond, we can compare the price of a round diamond of 1 carat:
- 1 carat to 5 carats round AAA Black diamond quality: from $1500
- 1 carat round natural black diamond from 400 dollars
- Round treated black diamond from 1 carat to 100 to 400 dollars
- This comparison is only indicative but gives you an order of magnitude to guide you in your choice of diamond.
- Prices fluctuate according to suppliers, their stock, and market demand over time.
How to Buy a Black Diamond?
The first option would be to order your black diamond from Gemistone Jewelers; we provide a high-quality diamond and other necessary customization black diamond jewelry to meet your wishes.
The easiest way before making a big order is to order a small diamond to ensure the seriousness of the company. See we provide free shipping in worldwide. Once you have made your trial purchase Kid cudi merch , you can order your diamond with confidence.
Be careful when making your purchase, black diamonds are often advertising as natural. Because they are, but their color is due to the treatment. Look carefully in the description of what it says about the color if it is natural or obtained by treatment.
If you want, buy Black Diamond Engagement Ring with Black Diamond? You are in the right place at Gemistone Jewelers; we recommended a wide range of black diamonds; their black diamond jewelry, loose diamonds, white natural round diamonds, and other pieces of diamonds jewelry. We recommended the best black diamond jewelry options like a black diamond stud for men or women, black diamond engagement ring, and other pieces of diamond jewelry.
How to associate them With Jewelry?
If black diamonds are not dazzling stones, they are ideal contrast stones. They will go perfectly on a white, yellow, or pink gold ring or even on a rhodium silver ring, even if they are most often seen mounts on white gold. Mounted in combination with white diamonds, black diamonds are of the most beautiful effect.
