INSTOREMAG.COM5d
Joint Statement on Response to Color Instability in Some Sapphires And Rubies
(PRESS RELEASE) The World Jewellery Confederation (CIBJO), the American Gem Trade Association (AGTA) and the International ...
Wall Street Journal4mon
World's Largest Sapphire Found in Sri Lanka
The world's largest blue sapphire corundum was found in Sri Lanka and weighed in at a hefty 42 kilograms. The company that owned the sapphire cut it into several chunks, including a 17 kilogram ...
IDEX Online6d
New Call for Full Disclosure on Ruby and Sapphire Treatment
The World Jewellery Confederation (CIBJO), the American Gem Trade Association (AGTA) and the International Colored Gemstone ...