Gem Reference

Cultured pearls - farmed nacre grown around a planted bead or tissue piece - are the modern pearl market, from inexpensive Chinese freshwater to Australian South Sea giants.
Sign in to unlock price ranges by tier, common misidentifications, diagnostic inclusions, treatments, spectra, trade names and sources — free with the GT200 Gem Identification course.
GT200 Gem Identification ↗ Sign inBrowse the free gem reference · Test your eye — the Great Gem Quiz · Singapore gem testing labs