Generally, you buy them.
Diamonds are naturally 'colourless', graded D-F in the diamond colour scale, or they are naturally many colours, including yellow, blue, green, pink, black and chocolate. Coloured stones have their own scale of colour saturation, Vivid Fancy being the most desirable.
Diamonds possess colours based on the occurrence of trace minerals within the stone. Some of the 'light' coloured diamonds are irradiated, to enhance the colour. 'Treated' diamonds should always be labeled as such, and often are not labeled.
When investing in a coloured diamond, best practices dictate that you obtain a certificate for the stone from a certified gemologist.
Two types, colorless, which are cut to emphasize brilliance and colored, which are cut to emphasize the color. However, the most popular are colorless diamonds, but they also come in shades of pink, yellow, brown, blue, chocolate, champagne, black and green, along with hues in each of the colors.
One can find original colored diamonds to purchase from the 'Original Diamonds' website. They have diamonds listed in colors 'Exceptional White' and 'Rare White'.
The largest producer of chocolate and other brown-colored diamonds (champagne, cognac) is the Argyle diamond mine in western Australia. Brown colored diamonds are also found in Africa.
Black diamonds are more rare than regular diamonds. They are one of the most rare species of colored diamonds.
Harlequin.
There are really color diamonds which are rare and thats why they expensive
Nope. Black diamonds are very valuable (and very beautiful in my opinion!) but it's red colored diamonds that are considered the rarest and the most valuable.
Argyle -Lalit Uchil
No. I believe that they are of a different mineral combination.
Canary diamonds are bright yellow-colored diamonds. One can purchase them from jewelers, as well as from online mega-retailers such as eBay and Amazon.
Because cut diamonds reflect all the colours of the rainbow from each facet.
There are many different colors for diamonds. They do in fact come in black, though they are rare. If you stumble across one, they have an almost priceless value.
Black diamonds that are available in the market are usually low grade white diamonds that have been colored black, however, natural black diamonds can be expensive depending on the quality.