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jewelry glossary

Antique jewelry glossary

Welcome to our extensive antique jewelry glossary with around 1,500 jewelry related entries.If you feel you are missing an explanation, feel free to let us know and we will add it.

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Grain

A unit of weight for pearls (sometimes formerly used for diamonds) equal to ¼ of a carat. It is sometimes called a 'carat grain' or a 'pearl grain'.

Cultured pearls were formerly sold in Japan by the unit of weight called the momme, which equalled 75 grains. The line along which a diamond is divided by cleavage.

From: An Illustrated Dictionary of Jewelry, autor: Harold Newman, publishers: Thames and Hudson

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