Diamond clarity charts show how diamonds are cut and processed, which colors are produced and how many different layers of gemstones are involved.
Each color, for instance, represents a different color of gemstone and a different type of diamond.
A diamond clarity chart shows how the diamonds are separated from each other, or cut, in the diamond making process.
A gemstone clarity chart is used by gemologists to show how gemstones will react to certain chemicals, like heat or ultraviolet light, and to show what the gemstone will look like on your finger when it is polished.
The Diamond Clarity Chart is available on Engadgets site for $19.99.