Gemmological Certification

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FEATURED
Smith & Green Jewellers

Smith & Green Jewellers

Smith & Green Jewellers, a name synonymous with elegance and quality, has been a prominent fixture in Hatton...

    • 9 Hatton Garden, EC1N 8AH
FEATURED
Holts Lapidary – Gemstone Suppliers

Holts Lapidary – Gemstone Suppliers

Quality gemstone jewellery Highly experienced and qualified in-house gemologists, lapidaries and jewellery designers, Holts Lapidary pride themselves on...

    • Holts Lapidary, 1st Floor, 39 Grevi…
The Gemmological Association of Great Britain

The Gemmological Association of Great Britain

Since its inception in 1908, the Gemmological Association of Great Britain (Gem-A) has been at the forefront of...

    • 21 Ely Pl, London EC1N 6TD
World Gemological Institute

World Gemological Institute

High-quality gemstones All of our Gemologists are graduates of the Gemological Institute of America (GIA) and have many...

    • 100 Hatton Garden, London EC1N 8NX
IDRC Diamond Grading Laboratory

IDRC Diamond Grading Laboratory

At IDRC, we understand the value of peace of mind when it comes to your precious items. This...

    • Premier House, 4th Floor ,12-13 Hat…
Taylor Jewellery Valuation

Taylor Jewellery Valuation

International jewellery valuation service International expert jewellery valuation, offering professional expert gemological certification services on all aspects relating...

    • The London Diamond Bourse 100 Hatto…
All About
Gemological Certification

Gemological certification supports confident buying by confirming a gemstone’s identity, grading, and any disclosed treatments through an independent laboratory report. This category groups directory listings connected to gemological certification in Hatton Garden, including laboratories, trade desks, and specialists who arrange reports for diamonds and coloured stones.

Certificates usually record carat weight, cut, clarity and colour, and may include notes on fluorescence, laser inscriptions, and evidence of enhancement. Providers can also help distinguish natural, treated, and lab-grown stones using standard gemological methods. Reports are often requested for high-value purchases, insurance, estate jewellery, and resale, where clear documentation matters. Many clients look for internationally recognised laboratories such as GIA, IGI, AGS or EGL. In London, services may also be linked with UK institutions including the London Diamond Bourse, Gem-A, and the World Gemological Institute, depending on the type of testing or documentation required. Use the listings to compare providers by specialism, turnaround expectations, and the type of certificate offered.