Table percentage

The diameter of the gemstone divided by the size of the table.

November 15, 2009  Tags: diameter, gemstone  Posted in: Glossary   No Comments

Millimeter

The unit of measure used to determine the diameter and measurements of a pearl. The millimeter is also used to measure gemstones other than diamonds below ½ carat.

November 4, 2009  Tags: diameter, unit  Posted in: Glossary   No Comments

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