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 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 »

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 system developed by the Gemological Institute of America in the 1950s that grades diamonds by color, clarity, cut and carat weight determines a diamond's price. The value is affected by the quality and rarity of the fo... More »

An old mine diamond cut is one in which the diamond is fashioned into a square type girdle with slightly rounded corners. They have a high crown, large and flat cutlet and a small table. This type of diamond cut was firs... More »

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Good diamond testers identify diamonds based on their electric conductivity instead of heat conductivity. Testers that identify both properties are even more accurate. In addition, a good diamond detector should notify t... More »

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A diamond grading chart is a rating system for the internal characteristics and surface conditions of diamonds developed by the GIA, an independent non-profit laboratory that rates and certifies diamonds. The chart consi... More »

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