The most common diamond cuts, as of 2014, include round, emerald, princess and radiant. A diamond’s cut is normally determined by the size and shape of the original, rough stone. More »

A rose cut diamond has a flat base and 24 triangular facets that rise to a point, and was the most brilliant diamond cut available in the 1800s. It is shaped like a pyramid when viewed sideways. This style of gemstone cu... More »

Heart-cut diamonds are the most expensive style due to the cost and expertise required to manufacture diamonds in this shape. The process of cutting a diamond into a heart shape is difficult and demands a skilled diamond... More »

A real emerald will radiate green light when placed in a glass pot filled with water while an imitation will not. Another way to tell the difference is to place a drop of water on the stone. If it spreads out, the emeral... More »

The Pink Star diamond is the most valuable gemstone in the world as of 2015, with an estimated value of $83,187,381 and the highest possible color and clarity rating. This diamond weighs 59.6 carats, or 11.92 grams, whic... More »

A diamond with a clarity rating of I1 or I2 is considered relatively low-quality, at least in terms of clarity. I2 and I3 are considered grades of "included" by the Gemological Institute of America, which means they cont... More »

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A diamond, made of pure carbon, is both a jewelry gemstone and a durable material in industry. There are two types of diamonds: gem diamonds and industrial diamonds. More »