In this article, we shall state Fact about Black Diamonds, its origin, types, cost, treatment and care.
Carbonado, commonly known as black diamond, is one of the toughest forms of natural diamond. It is an impure, high-density, micro-porous form of polycrystalline diamond consisting of diamond, graphite, and amorphous carbon, with minor crystalline precipitates filling pores and occasional reduced metal inclusions.
It is found primarily in alluvial deposits where it is most prominent in mid-elevation equatorial regions such as Central African Republic and in Brazil, where the vast majority of carbonado diamondites have been found.
Its natural colour is black or dark grey, and it is more porous than other diamonds.
Geophysicists believe these stones came from a meteorite, and they consist of carbon, graphite and diamond.
The Ancient Romans encountered black diamonds as they explored and conquered large areas of Africa and quickly became enamored of them. They believed that the gems were very lucky and that they were, therefore, an exceptionally good choice for a wedding ring.
The Romans actually decreed that women be given two wedding rings upon marriage. A simple iron band was designed to be worn around the home while completing household chores etc, while a gold ring with a dark stone was to be worn when going out.
Many men chose to give their brides rings of gold and onyx, but if they wanted to truly show off their wealth and status, they opted for a black diamond instead.
On the other hand, The Ancient Indians had a very different take on the darked gems. They believed them to be cursed, as they seemed to be the same shade of black as a cobra’s eyes. In fact, black diamonds were assigned as a symbol of Yama, the Hindu god of death.
These days black diamonds are rarely thought of as lucky or unlucky, but as still slightly mysterious gems that are truly beautiful, however, they are worn.
Even though black diamonds are more popular than ever, they’re extremely misunderstood.
The question, what is a black diamond seems like a simple question, but actually, the term black diamond can mean a few different types of stones.
Natural Black Diamonds and Lab Created Black Diamonds
Another Fact about Black Diamonds is that natural black diamonds (also called fancy black diamonds) get their color from mother nature. Other minerals are trapped inside the diamond during its formation in the earth. The extremely high amount of these other minerals within the diamond, called inclusions, are what give natural black diamonds their black color.
Natural carbonados are particularly difficult to cut and polish without chipping or breaking on the cutting wheel. This is due to the fact that they are polycrystalline, or aggregates of many individual diamond crystals.
Because of this, they can take much longer to facet than colorless diamonds, and the finished gems are softer and more likely to take damage over time.
The cool thing about inclusions is that these are what give the diamond it’s unique character and make it unlike any other stone as no two diamond have the same inclusions.
Black diamonds (notice the absence of “natural” or “fancy”) are found in nature, although their color is not. These are sometimes called treated black diamonds, black colored diamonds or color enhanced diamonds and they’re turned black as a result of heating treatments that enhance their color from typically dark grey, to black.
Lab created black diamonds are identical to natural diamonds but they are lab grown, so neither the stone nor the color are found in nature.
Black lab grown diamonds are man made, not mined from the earth like the others. Still, they’re the real deal: chemically and structurally identical to mined diamonds, but neither the stone nor the stone’s color comes from nature.
How Expensive is Black Diamond?
Black diamond cost is determined by size and origin. Fancy black diamonds and Carbonados are both extremely rare. Only one in 10,000 natural diamonds are colored diamonds and only a portion of these colored diamonds are black. Because of their scarcity, natural black diamonds and Carbonados are the some of the most valuable and most costly.
We don’t expect you to know the difference between natural and lab grown black diamonds. Therefore, it’s always better to ask a gemologist or trusted jeweler anytime you’re thinking of making a new purchase.
Fact about Black Diamond is that the price difference between lab-grown black diamond jewelry and naturally grown black diamond jewelry is significant. Therefore, it’s very important for you to understand what you’re paying for, and that you’re making a smart purchase.
Lab created black diamonds are also less expensive than their mined counterparts. Because they are grown with the color already in them, they are just as durable as natural diamonds.
Regardless of origin, a black diamond’s value is based on the same criteria as all diamonds–the 4C’s: clarity, cut, color, and carat.
Unlike colorless diamonds, clarity is based on the external conditions of the stone. But just like any other diamond, the higher the carat weight, the bigger the price tag.
If you want a colored diamond with a more organic look, rough diamonds (sometimes called raw diamonds) lack the clarity of colorless diamonds and appear smoky and subdued.
When these stones are cut and polished, they’re called rose cut diamonds, rough diamonds, salt and pepper diamond, or galaxy diamonds and are a major fave for unconventional brides looking for a rustic engagement ring. Although they can be “salt and pepper”, brown, green, or white, some rough diamonds are black.
Due to their scarcity, natural black diamonds are considered to be rarer than the traditional colorless diamond.
In terms of pricing, natural fancy carbonados can cost anywhere from $3,000 to $5,000 a carat, obviously contingent upon size and among other factors.
Fact about Black Diamonds is that Lab created black diamonds, and even natural diamonds that have undergone treatment, are considerably less expensive than those found naturally growing.
Treated carbonados, which are usually naturally-mined colorless diamonds that have been treated to develop a black color, achieve their dark hue in one of two ways.
The two processes are:
- Exposure to high heat
- Radiation using gamma rays in a nuclear reactor.
Note that heat treating a stone can weaken it. Heat treated black diamond could be weaker than natural black diamonds.
Because many black diamonds are simply natural diamonds that have been treated to display a black color, they are easier to cut and shape versus their naturally grown counterparts.
Lab grown carbonados are also significantly less expensive than their naturally found counterparts, going for as little as $200-$400 a carat.
Treated black diamonds
Just because a black diamond was found naturally growing, doesn’t mean their quality can’t be improved! Many carbonados that are sold for engagement rings or jewelry have been lab treated to enhance beauty and color. These diamonds begin as gray, heavily included and fractured, that is then subjected to a high-temperature/low-pressure treatment that graphitizes the fractures.
As mentioned earlier, most black diamonds that are available for purchase on the market have been lab treated in one way or another, so it’s helpful as a consumer to know your gemstone’s origin story. This is especially true in regards to taking care of your diamond.
The care and cleaning of carbonados is the same as for any delicate gemstone: do not use steam or ultrasonic cleaners, which could cause damage.
A Fact about Black Diamonds, a naturally grown black diamond, while praised for its hardness, is significantly softer than a colorless diamond.
A black diamond’s nature is such that it may contain hundreds if not thousands of microscopic fractures, which make it more vulnerable to breakage from sharp blows than colorless diamonds. In any case: it’s a precious gemstone–be kind to it and handle with care.
Black diamonds are among the most popular types of colored diamonds used for engagement rings.
Although not actually a true colored diamond, this stone has become immensely popular for the brides seeking out a little something different for their engagement rings