Mô tả sản phẩm: Kim cương Vàng fancy thiên nhiên KCTN0018
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 desposits found in Canada, India, Russia, Brazil, and Australia.
Clarity Explained
* IF = Loupe Clean - Internally flawless; free of inclusions
* VVS = Almost Loupe Clean - Very, very slight inclusions; inclusions barely seen under 10x magnification
* VS = Eye Clean - Very slight inclusions; inclusions can be seen under 10x magnification
* SI = Slightly included - Small inclusions can be seen with the naked eye
* I1 = Included - Inclusions can be seen with the naked eye
* Transparent = A gemstone having the property of transmitting light without serious diffusion / may have rutile or other inclusions
* Translucent = Allowing light to pass through, but not transparent
* Opaque = Does not allow light to pass through