Brown diamonds are exciting natural colors of this gemstone acquired from the diamond mines of Siberia, South Africa and Australia.

Rio Tinto's argyle mines in Western Australia produce the largest amount of brown diamonds in the world.

The birth of diamond deep within the Earth's core requires unimaginable pressure and heat exerted on carbon crystals within the rock and trace elements within its lattice structure.

The tremendous pressure and heat sometimes distort and compress its structure abnormally, resulting in purple, red, pink, and brown colored stones! If the hydrogen, nitrogen, boron, and other elements within interact with the carbon atoms during the creation of the diamond, its color can change. Alternatively, this can also happen due to exposure to radiation.

Brown diamonds can have various shades of colors with such interesting names as Cognac Diamond Chocolate Diamond Champagne Diamond

It is important to remember whether Brown, Cognac, Chocolate or Champagne are the focus of similar diamonds. They have no differences in mining, processing or geology and generally the same suppliers offer all these types of diamonds in different variations of the BROWN color. Cognac Diamonds Exotic, rich, warm and dark the Cognac color has a special place in the hearts of diamond lovers due to its bold and attractive appearance. Combine them with colorless stones and jewelry designs to create an exquisite charm.

These are undoubtedly the rarest and darkest varieties associated with brown diamonds. As such, these are highly prized among the naturally occurring colored varieties. Argyle diamonds have created the C1-C8 color grading scale, with Cognac stones occupying the highest position at C8.