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How to determine the value of a Black diamond?

value of black diamond

If you have been thinking of buying a black diamond, there may have been several questions swirling through your mind regarding the value of such a stone.

After all, it is not as common as white diamonds, and the public is still not completely well-versed about the characteristics and traits of this new stone. Hence, it is completely natural that people have so many questions about black diamonds and what their value is in the market.

If you, too, are wondering what the value of a black diamond is, keep reading.

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Determining the value of Black diamonds

The truth is that there is no simple answer to this question.

Like all colored diamonds and white diamonds, black diamonds have their prices set in the response to market needs. The basic two factors, that is – supply and demand – are the most important concepts for understanding the value of a black diamond, or any diamond for that matter.

When it comes to understanding the demand for black diamonds, it is a little tricky. Although a large number of people are demanding black diamond jewelry now, there is still a large section of the public that does not even treat them as diamonds.

Because black diamonds do not have the ability to shine and are not particularly brilliant, they are often disregarded as diamonds. On the other hand, there are many people who love them for their unique color.

But there are other factors at play here besides the public perception of black diamonds – it is the fact that most black diamonds in the market are not even real black diamonds. This means that there are not many mined diamonds in the market. Most of the black diamonds used in jewelry pieces are treated ones.

Also Read: Tips For Beginners Diamond Trader – How To Get Started

Here is the overview of the topics which we are going to cover today in this post.

value of black diamonds

What makes Black diamonds Rare?

The truth is that all types of diamonds are rare, and supply being low compared to demand, it is not surprising that they are priced so highly. Having said that, black diamonds are even more than white or colorless diamonds.

They may not be as rare as pink or yellow diamonds, but they certainly have their place in the supply chain as rarely found stones. And that’s not all, there is another feature that makes black diamonds stand apart from other types of colored diamonds.

While most types of colored diamonds get their unique hues from impurities that they have absorbed during their formation, black diamonds are different in this regard. They are basically white diamonds with so many inclusions spread out throughout the body of the stone, that it just appears black.

It should be noted here that diamonds with inclusions that make them appear completely black are not very easy to find. But as we have said before, you do not see mined black diamonds in the store. The black diamonds used in jewelry are usually made by irradiation and heat treatment of low-quality white diamonds. That is why the price of these treated black diamonds is so affordable.

Most treated black diamonds are treated in such a way that they have a green color that is so dark that it actually appears black. Therefore, the bottom line is that there are two choices when it comes to black diamonds and their value–treated black diamonds that are more affordable, and naturally minded black diamonds that are much more valuable.

This brings us to the next question…

Are natural Black diamonds Expensive?

Again, there is no simple answer to this question.

Treated or enhanced black diamonds are not very expensive. In fact, you can find listings of treated black diamond jewellery for anywhere between $200 to $1000 per carat, depending on how complex you want the design and whether you want melee white diamonds to go with it.

But if you want natural black diamonds that have been certified by GIA, the price can range from anywhere between $1500 to $3000. This price range is for diamonds that weigh between 1 carat and 3 carats. It should be noted that this price is only for the diamond. Therefore, a black diamond ring can set you back somewhere between $2500 and $3000.

This difference in the price of natural black diamonds and treated ones can be attributed to the different qualities of these stones. Additionally, the price of a natural black diamond depends on various factors, like the fact that they are more difficult to polish and that their cut largely affects their pricing.

Natural black diamonds also have a porous surface, so they need to be smoothed out to make them usable in jewelry. All of these things affect the final price of the stone.

Also Read: Difference between Full Cut and Single Cut Diamonds – Which one to choose?

What is the price of Black diamonds per carat?

Even though natural black diamonds are more expensive than treated ones, they are still quite affordable compared to white diamonds.

In fact, the affordability and the unique beauty of the black diamond is what makes it such a great option when it comes to the traditional white diamond engagement ring.

You can check the pricing of treated black diamonds vs the black diamonds that are naturally black in the table below. For comparison, we have also included the pricing of white diamonds.

  .50 carat diamond per carat price 1 carat diamond per carat price 2 carat diamond per carat price 3 carat diamond per carat price
Treated black diamonds $200


$300 $400 $500
Natural black diamonds $2000 $3000 $3000 $9000
White diamonds or colorless diamonds $2500 $5000 $9500 $36,000


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Thus, it is clear that the pricing for treated black diamonds or even natural black diamonds does not change as exponentially as the size increases.

Therefore, it is not surprising that a white diamond of 3 carat is priced at $36,000, where you can get a 10-carat natural black diamond for $30,000. Ultimately, it is up to you whether you want to prioritize size or color.

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