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.
How much do black diamonds cost? The average cost of a black diamond depends on whether it is a heat treated natural diamond or an untreated natural diamond. Treated black diamonds have an average cost of $300 per carat, while untreated black diamonds have an average cost of $3,000 per carat.
Although black diamonds are rarer than white, colorless diamonds, they generally cost less to purchase. The main reason for this is lower demand. While colorless diamonds are widely used in diamond engagement rings and other jewelry, black diamonds are more of a niche gemstone.
Black diamonds, however are more affordable than other white or coloured diamonds, in large due to the fact that they are less in demand. They are also completely opaque and cannot be graded according to their colour intensity as they are only found naturally in one colour – fancy black.
They are only found in Brazil and Africa and have the same chemical composition as white diamonds, however, they get their black colour from their many inclusions. Their inclusions are typically clusters of graphite or carbon, which create a beautiful gem-like appearance.
The price ranges between $1,500-$3,000 per carat for black diamonds weighing between 1.00 to 3.00 carats. On the other hand, colorless diamonds may range between $2,500 to $153,000 per carat for clear diamonds weighing between 1.00 – 3.00 carats. That is a big price difference, right?
Black diamonds tend to be heavily included brown diamonds that are treated with heat and pressure to turn them completely black and opaque. The multitude of inclusions make them more unstable and far more prone to fracturing than their transparent counterparts.
Red diamonds are the rarest of the colored diamonds, with only 20-30 existing in the entire world. They get their beautiful red color from a rare process during their formation, which changes the crystal structure of the diamond and causes light to pass through it differently than colorless diamonds.
Diamonds are incredibly tough and can resist extremely high heat. Another test to determine if a black diamond is genuine is the Heat Test. To do this, use a lighter to heat the black diamond for a few moments, then drop the hot diamond immediately into a glass of water, If it breaks, then it is a fake diamond.
Red diamonds are the rarest and some of the most expensive in the world. Also known as Fancy Reds, they come in a variety of shades ranging from orange-red to brownish red. Majority of the world's red diamonds come from the Argyle Diamond Mine in Australia.
Black Diamonds Are Extremely Durable
This makes them a great investment for anyone looking to invest in something that will last. Black diamonds are also resistant to scratching and chipping because they're made up of pure carbon.
Because of their opaque nature, black diamonds do not display the sparkle or brilliance that we normally associate with a diamond. Instead, black diamonds exhibit what is referred to as an adamantine luster. It gives them a shiny and smooth appearance, very similar to the way that you'd expect an emerald to look.
Unlike traditional white diamonds, the “cut” of a natural black stone isn't about light return and sparkle. That is because black gems do not sparkle the same way (due to not being see-through). Instead, natural blacks give off a more metallic-like shine.
They're thought to symbolize power, passion, and inner strength, making them a suitable choice for couples who value the hard work they put into their relationships. The main reason we love black diamonds is their striking appearance.
Black diamonds are affordable:
Choosing treated diamonds would cost you around $100 and $200 per carat; however, GIA-certified black diamonds would cost you $1000 and $3000, which is still affordable to the colourless diamonds. The GIA certification assures you of the origin of the diamond.
Diamonds, which are precious substances, can be found in different colours, like yellow, blue, pink, and green. However, the most expensive and rare variety of this gift of nature is the black diamond.
Pros: Like colorless diamonds, black diamonds are very hard and don't scratch easily. Compared to other black stones (like onyx or black sapphire), black diamonds won't lose their shine or luster over time. They also have the natural shine of colorless diamonds.
No longer considered to be 'cursed', black diamonds still have an edge that sets them apart from more traditional white or fancy colored diamonds. But a new generation of fashion trailblazers and celebrities has fallen in love with black diamonds – and they adore them for their quirky connotations and rarity.
While other diamonds are typically found in Kimberlite deposits, black diamonds are only found in alluvial deposits that have been created by a river or another source of running water. Black diamonds are found in Africa and Brazil.
Relatively affordable colored diamonds – Grey, Brown and Fancy Yellow Diamonds. Mid-range pricing – Intense and Vivid Yellow Diamonds and Orange Diamonds. High price range – Pink, Purple, Violet, Green and Blue diamond.
The highest color grade for a diamond is “D”. “D” color diamonds are very rare and not commonly found in traditional jewelry. Most diamonds used in jewelry have a slight presence of color. It is possible for diamonds to have a very high concentration of desirable color.
What's more, because black diamonds are opaque – and, in most cases, heavily included – they cannot be graded on the GIA clarity scale. Likewise, because there is no variation in the tone and saturation of a black diamond (unlike their pink, yellow, or blue counterparts), only the single grade term Fancy black is used.
“Black diamonds are traditionally less valuable than white diamonds because they are in many ways imperfect with inclusions and generally uneven coloration.
Black Diamond Vs White Diamond Per Carat
Black diamonds are cheaper than white diamonds. This is partly because many of the black diamonds are in fact created in a laboratory nowadays. Natural black diamonds, however, are very rare.