Opals are typically sliced and made into jewellery John Dunstan, the vice president of Australia's Opal Mining Association, was one of the first to get to work at Shell Patch. He has already ...

A ring with an 8.80ct black Australian opal, courtesy of Kreis jewellery. GemGenève exhibitions are a must-see each edition and this one was one of the most spectacular. Curated by Gemgenève ...