diamant

diamant is masculine in French.

diamond (gem); diamond (shape); needle (of a record player)

Inherited from Middle French diamant, from Old French diamant, from Late Latin diamas, probably from metathesis of adimas (whence aimant), from Latin adamās, ultimately from Ancient Greek ἀδάμας (adámas).

diamant is masculine in French.

excelsior (a small size of type, standardized as 3 point)

Borrowed from Dutch diamant, used by Dirck Voskens who first cut it around 1700, presumably naming it by analogy with the larger perle.