Precious gemstone specialists
Holts Gems, 1st Floor, 39 Greville Street, London, EC1N 8PJ.
Mon to Thurs 10am-5pm Fri: 10am-4.30pm
Gemstone expertise since 1948, Holts Gems specialise in bespoke and gemstone-set jewellery and lapidary and insurance valuations.
World Gemological Institute
Gemological Certification london
14 Greville Street London EC1N 8SB
Mon-Fri 9.30am to 6.00pm
For over the past 30 years the World Gemological Institute (WGI) have build a solid standing reputation as one of the leaders in the Industry.
Richard Taylor jewellery valuation
specialist jewellery valuation service
The London Diamond Bourse 100 Hatton Garden London EC1N 8NX
Monday to Friday 10am -5pm
Gemological certification services by Professor Richard Taylor, principal valuer and consultant with more than 30 years’ experience in preparing expert jewellery reports.
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