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Grain

Grain

This glossary entry has not yet been updated and is under review.

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.

Explanation on grain by Adin antique jewelry
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Grain

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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.

Also known as:

References

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