Purchasing coloured gemstones can be a magical experience, filled with excitement and anticipation. But lack of information, error, or misrepresentation can mak
This guide helps buyers to evaluate these spectacular gems and it updates professionals on new treatments and sources of corundum and emerald. Using close-up ph
The perfect pocket-sized companion for those travelling and thinking about purchasing jewellery or stones. Renee Newman, author of the highly respected gem and