Platinum Guild International (PGI) reported a continued recovery in platinum jewellery sales in India, Japan and the United States in the second quarter of 2022, despite the lingering effects of the pandemic…
Gemologists at Bangkok’s Lotus Gemology recently received a 6 ct ruby for identification. Declared to be an untreated ruby from Mozambique, the stone featured a superb vivid red color of a type…
Emeralds are known to have natural cracks or fractures. The filling of surface-reaching fractures with various oils and resins is the most common practice to minimize fractures to improve an emerald’s appearance.…
The selling of simulants and synthetics mixed with parcels of natural stones is an old form of deception. It usually happens close to mines, where inexperienced buyers assume the gemstones come directly…
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 diamond crystal inclusion that displayed a transparent, ghost-like appearance. Due to the large size of this nearly…
The authors recently examined a 5.19 ct type IIa natural diamond (figure 1) displaying numerous etch channels (figure 2). Etch channels are open tubes whose formation is related to dissolution processes within…
Despite resilience in the automotive, jewellery and industrial sectors, combined with reduced mining and recycling supply, a reduction in ETF holdings and exchange stocks saw a platinum surplus in Q2 2022 of…
Lucapa Diamond Company said it recovered a 160-carat white Type IIa diamond from the same alluvial mining block as the 170-carat pink coloured “Lulo Rose”. The 160-carat diamond is the 28th diamond…
GJEPC’s Delhi regional office organised a brief seminar on the subject of “How to get export cargo insurance and claim settlements” at its Jhandewalan office on 3rd September 2022. More than 45…