DIAMOND TERMS GLOSSARY

Sell Diamonds in the United States
  • Off-center culetCulet which is not centered in relation of the girdle outline. When the variation is noticeable, it is considered a major negative
  • Off-center tableTable which is not centered in relation to the girdle outline. When the variation is noticeable, it is considered a major negative
  • Off-color diamondDiamond with a tint of color, such as yellow or brown, which is apparent to the unaided eye
  • Old European cutEarliest form of brilliant cut with a circular girdle. Characterized by a very small table, a heavy crown and a great overall depth
  • Old mine cutEarly form of brilliant cut with a nearly square or cushion-shape girdle outline, a high crown, a small table, a deep pavilion, and a very large culet. Also called an old-miner.
  • Open culetLarge culet, usually visible to the unaided eye through the table
  • Origin of color reportReport issued by a gem-testing laboratory, stating whether a diamond’s color is natural in origin, or due to an enhancement process such as irradiation