There are currently 7 glossaries in this directory beginning with the letter H.
Hardness (Moh's Scale of Hardness)
The ability of a stone or mineral to resist scratching. Hardness is measured from 1-10, 10 (diamonds) being the hardest.
Heart-Shaped Cut
Stones cut in the shape of a heart. Heart-shaped diamonds are a variation of the round brilliant-cut.
Hidden Clasp
A watch clasp that cannot be seen from the outside of the band. Portions of the metal band expand out to fit over the hand and internally fold, bringing the ends of the band together for a seamless look. Can include push buttons for added security.
Hinged Backs
Very popular in hoop earrings, this back has a hinged piece of metal that goes through the ear and snaps into a latch on the opposite side of the earring.Impasto
History painting
A genre of painting that has as its subject a scene from history, a scene from mythology or a scene from great works of literature.