Laboratories

List of well-known gemological laboratories equipped to test chrysoberyl gemstone varieties, including identification of natural alexandrite gemstones.

Resource listing

Gem Studies Lab: Gem Studies Lab The Gemmological Association of Australia (GAA) is Australia’s historic trade-accepted non-profit educational authority for gemology.; www.gem.org.au
European Gemological Laboratory: Provides identification for rough and polished diamonds, colourless and coloured diamonds, as well as coloured gems and pearls.; www.eglcanada.ca/
Hong Kong Gems Laboratory: Provides identification and appraisal reports for rough and polished jade, colour gemstones and pearls.; www.hkgems.com.hk/
Zenhokyo: One of the most authoritative gemmological laboratory offering gemmological analysis using the latest equipment.; www.gaaj-zenhokyo.co.jp/
The Russian MSU Gemological Center: Issues four types of identification reports in two formats, including Diamond Report, Gemstone Testing Report, Jewelry Report and Rough Diamond Report.; www.gemology.ru/
AIGS Gemological Laboratory: Well known laboratory for its expertise in coloured gemstones, especially ruby, sapphire, emerald, jade and rare stones. Also provides identification and grading services for diamonds and jewellery.; www.aigslaboratory.com
The Gem and Jewelry Institute of Thailand: Offers authenticity of gemstones and their treatment reports, identification of pearls and their treatments, diamond grading and laser inscription on diamonds and colour gemstones.; www.git.or.th
GemResearch Swisslab: Determination of the authenticity and country of origin of rubies, sapphires and other rare colour gemstones. Also offers gemstone reports and inscriptions.; www.gemresearch.ch/
Gubelin Gemological Laboratories: An independent member of the Gubelin Holding and one of the world's most respected laboratories, offers gemstones, diamond and pearl reporting.; www.gubelinlab.com/
SSEF: An independent, international, non-profit organization dedicated to the identification, treatment and origin of gemstones.; www.ssef.ch/
AGTA Gemological Testing Center: Provides identification and origin reports and other colour gemstone services, including testing for beryllium in sapphire, natural origin of colour in diamonds and country of origin for sapphires, rubies and alexandrites.; www.agta-gtc.org/
American Gemological Laboratories: Provides independent coloured gemstone identification reports on all coloured gemstones including emeralds, rubies, sapphires and alexandrites.; www.aglgemlab.com/
Gemological Institute of America: Provides grading and identification of diamonds, coloured stones or pearls for the industry and consumers.; www.gia.edu
Gemmological Association of Great Britain: Services include reports for diamond grading, pearl and gem identification. Also provide re-polishing diagrams for diamonds and verbal assessments for diamond colour and clarity; www.gem-a.info/

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Alexandrite

Laboratories

Resource listing