Gemmology: basic course
This course is designed to start in the field of gemmology and learn the basics.
This course is designed to start in the field of gemmology and learn the basics.
This course, teaches you how to identify synthetic stones to distinguish them from natural stones on the market.
This course teaches you how to identify the variants of coloured stones and analyze the factors that influence the value of a stone.
This course is intended for anyone wishing to get into the business of buying and re-selling rough diamonds.