A new report from coloured gemstones miner Gemfields on the emerald, ruby and sapphire markets “… serves as a reminder of how ...

the emerald. Due to its rarity, red beryl stones sell for as much as $10,000 per carat. The Ruby Violet mine, owned by Gemstone Mining, produces 5,000 to 7,000 carats a year. "Gemstone mining map ...

GEMFIELDS Group said it could resume exports of emeralds from Zambia as a duty on gemstones re-imposed by the southern ...

since then the largest stone was found in 2018, weighing 1.54 kg," the statement says. The mineworkers found the emerald in a mine 260 meters deep. "This is a real natural sample, unique not only ...

The GIA team collected tsavorite, spinel and sapphire rough, verifying and recording the precise origin of each sample ...

London-listed Gemfields said on Wednesday that it would lobby the Zambian government to suspend the newly reinstated 15% export duty on precious gemstones ... 75%-owned Kagem Mining.

The Guernsey-based miner and marketer of coloured gemstones operates the Kagem emerald mine in Zambia, one of the biggest in the world. Gemfields also owns the Faberge jewellery brand and a ruby ...

Visit to Tanzania and Kenya marks 17 years of rigorous scientific studyCarlsbad, Jan. 30, 2025 (GLOBE NEWSWIRE) -- CARLSBAD, Calif. – January 30, 2025 – GIA field gemologists recently completed their ...