• +44 (0)207 491 4777
  • contact@gcslab.co.uk
  • 30 New Bond Street, London W1S 2RN

Other gemstones


We are happy to consider all gem materials which we deem suitable for testing, including but not exclusive to Jadeite, Garnet, Chrysoberyl, Topaz, Jadeite, Coral, Amber, Tanzanite, and Peridot.

Whilst we cannot guarantee an opinion on origin for this category, we can offer a full report with treatment disclosure or, if the treatment is not easily determinable, an identification report at a reduced cost.

GCS gemstone reports are issued for individual loose gemstones, gemstone pairs, gemstone sets, as well as for mounted jewellery (rings, ear clips and necklaces etc.) providing the mounting allows for adequate testing.