Diamonds andDiamond Grading Course
Diamondsfor the Retail Jeweller Course
Metals used in Jewellery Course
Essentials of Coloured Stones Course
Coloured StoneGrading Course
Coloured DiamondGrading Course
Alrosa has unveiled a new diamond tracking system that uses nanotechnology to engrave gems, potentially allowing them to be traced from the mine all the way to the consumer. Click here to read full article. https://www.jckonline.com/editorial-article/alrosa-diamond-tracking-system/