For information on diamond terms and a glossary for gemstones, please use the links below.

The Diamond Guide & Gemstone Index
AnchorCert has produced a comprehensive “Diamond Guide and Gemstone Index” as a useful reference for jewellers. The pocket size publication includes a huge quantity of information about diamonds including sieve sizes, facet diagrams for the most popular cuts and guidance as to cut quality as well as clarity and colour charts. Although focussing on diamonds, the Guide also includes a glossary of birthstones and gemstones.

If you would like to request a copy of the guide please call 0121 262 1010 or email gem@theassayoffice.co.uk