Diamond, the hardest known natural material, is named from the Greek "adamas", meaning invincible. A diamond is a transparent crystal of tetrahedrally bonded carbon atoms. Diamond is famed not only for its exceptional hardness, but also for its high refractive index and high dispersion of visible light - the ability to split white light into its component colors.
Diamonds can occur in nearly any color, though yellow and brown are by far the most common. Diamonds with a detectable hue other than yellow or brown are known as colored diamonds. If the color is strong enough, a stone may be referred to as a fancy colored diamond by the trade. Colored diamonds contain impurities or structural defects that cause the coloration, while pure or nearly pure diamonds are transparent and colorless.
Approximately half of the world's production of diamond comes from Central and Southern Africa, with other deposits found in Canada, India, Russia, Brazil, and Australia.
Certified Customer Reviews
Overall Rating -> 9
felt selecting what I wanted was easier and allowed me to find what I wanted.
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I was looking for very specific loose gems for my collection and some loose gems to add to a piece of jewelry I want to have made and Gem Select had everything I was looking for and the selection and price ranges were outstanding. I will absolutely purchase from this vendor again and often. I am so very pleased with the items I received.