A focused day taking an in-depth look at some of the most important coloured stones used in jewellery, including sapphires, rubies, emeralds and tanzanite. Delegates will gain a good commercial understanding of these stones and the key selling points for each one. A practical session looking at gemstones will give participants greater confidence in identifying coloured stones and their imitations. This course is an excellent refresher for those with some experience, or a good starting point for delegates who are new to assessing or selling coloured gemstones.


• How to use 10x loupe
• How to observe loose gemstones in
retail conditions
• Key consumer selling points
• Effects of gemstones treatments
• Practical tools for gemstone identification

Time: 10am – 4pm

Date: 20th October 2022

Location: Birmingham Assay Office

Tutor: Allyson Thomas