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.

A - B - C - D - E - F - G - H - I - J - K - L - M - N - O - P - Q - R - S - T - U - V - W - X - Y - Z     all

Piqué diamond

A diamond so classified for its lack of clarity (or purity) as a result of its having very small inclusions (piqués) of carbonaceous material, usually visible to the naked eye. There are grades of piqué diamonds according to the extent of the inclusions. Often referred to as 'PK'.

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