Noun
A lapidarist who cuts gems, usually precious or semiprecious, to make them suitable in size, shape, color and appearance, usually for use in jewellery such as rings or earrings.
He's a typical gemcutter, mostly diamonds but some emeralds and the occasional sapphire or ruby.
(obsolete) A lapidarist who creates hardstone carvings or miniature sculpture from gemstones such as jade.
Source: en.wiktionary.org