Gemstone (Coloured stone) certification
Gemstone certification is much more complex than with Diamond certificates and most people wouldn't even know that a coloured stone would be able to have a certificate. The locality of a coloured stone can greatly affect the price of the stone. Many people do not realise that most coloured stones on the market have had some kind of treatment applied to the stone to enhance its beauty. Gemstones have been treated/enhanced for hundreds of years to help with the durability, colour and clarity of the stone. Some of the treatments used are heating, irradiation, diffusion treatment and oiling.
Gemstone stone reports will identify the following:
- The type of gemstone,
- Whether the stone is natural or synthetic,
- The stones origin geographically,
- If the stone has had any form of treatment.
It will also include details such as carat weights, the shape, cut, measurements and sometimes a photograph of the item/gemstone.
The Gem and Pearl Laboratory Limited was founded in 2003. Stephen Kennedy is a gemologist with experience of laboratory-based pearl and gem identification dating back to 1980.
Within the UK the Gem and Pearl Laboratory offers:
- Nationally recognized reports for coloured gemstones and pearls,
- Heat treatment and country of origin opinions for ruby, sapphire and emerald,
- Unparalleled practical knowledge of pearl identification,
- Authoritative advice on the application of gem and pearl descriptions within jewellery.
Interested in the history of various gemstones click below to read about your favourite stone.