Platinum Guild International (PGI) reported a continued recovery in platinum jewellery sales in India, Japan…
Gemologists at Bangkok’s Lotus Gemology recently received a 6 ct ruby for identification. Declared to…
Emeralds are known to have natural cracks or fractures. The filling of surface-reaching fractures with…
The selling of simulants and synthetics mixed with parcels of natural stones is an old…
New technologies are increasingly being applied to cultured pearls, and it is exciting to witness developments in pearl traceability. GIA’s Bangkok laboratory recently received two South Sea bead cultured pearl necklaces, each…
Recently, the authors examined a 2.01 ct Faint green round brilliant diamond with a fascinating…