This is volume three in a series of books that explains with close-up photos the price factors an...

This is a full-colour guide to identifying and evaluating alexandrite, andalusite, chrysoberyl, c...

The perfect pocket-sized companion for those travelling and thinking about purchasing jewellery o...

This 3rd Edition provides concise yet comprehensive information on coloured gem quality evaluatio...

This updated and revised 8th Edition provides concise yet detailed information on diamond quality...

This guide provides concise, interesting and practical details on uncommon gems that are now bein...

A full-colour guide for lay people and professionals about gold, platinum, palladium, silver, cop...

This is the fourth in a series of books that explores the history, lore, properties, qualities an...

This is the first in a series of books that will explore the history, lore, evaluation, geographi...