Gemstones
Sort By
Showing 61 - 63 of 63
JAA issues diamond alert
The Jewellers Association of Australia has warned jewellery retailers and suppliers to keep away from inaccurately graded diamonds.
Gem experts meet in Coober Pedy
A French professor specialising in opals and coloured diamonds, Australia’s leading colour gemstone expert and Asia’s top jade authority were the…
Topaz, tanzanite and treatments
Like almost all precious and semi-precious gemstones topaz and tanzanite are increasingly being enhanced with treatments.
