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GemResearch Swisslab (GRS) Specializing in Origin Determination of Fine Rubies and Sapphires | gemresearch.info contacts

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GRS GemResearch Swisslab AG is a private independent gemological research laboratory specialized on the issuance of origin and authenticity reports on rubies, sapphires and emeralds as well as other important coloured gems including spinel, tourmalines, garnets and jade. The research laboratory is highly equipped to identify today's advanced treatments. Regular trips to most important mines in the world are presented in documentaries and our own book series Contributions to Gemology.

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KEYWORDS

11 gemmological consultance

12 gemstones testing

13 issuance gemstone reports

14 gemstone software

15 jewelry investments

16 gemstones evaluation

17 seminaries gemstone deposits

18 gemstone certificate

19 gemstone identification

20

CONTENT

GRS GemResearch Swisslab AG is a private independent gemological research laboratory specialized on the issuance of origin and authenticity reports on rubies, sapphires and emeralds as well as other important coloured gems including spinel, tourmalines, garnets and jade. The research laboratory is highly equipped to identify todays advanced treatments. Regular trips to most important mines in the world are presented in documentaries and our own book series Contributions to Gemology.

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documentaries, bibliography, auctions, grs at auctions, certified gemstones mounted, report verification, about grs, dr a peretti, company profile, contact and locations, email grs, search suggestions, adolf peretti, analyses, analysis, anong kanpraphai, archive, auction

INTERNAL LINKS

Auction Results | GRS GemResearch Swisslab AG

/certs/AuctCert.htm

Each collet-set with a cut-cornered step-cut emerald, within a hexagonal frame set with brilliant-cut diamonds, mounted in platinum, accompanied by GRLl report no. 9803071 stating, that the emeralds is of Colombian origin, enhancement insignificant. Sotheby's May-1998 Geneva Lot 413, An Important Ruby and Diamond Ring, by Tiffany and Co. (Ruby of 14.16 ct) GRL 9803066. The shield-shaped sapphire weighing 6.17ct set within a border of eight-cut diamonds. Accompanied by a certificate from Gemresearch Labor...

Prices | GRS GemResearch Swisslab AG

/prices.htm

GRS Alert: Unusual phosphorescent pebbles identified as synthetic aggregates. Colombian Emerald Mines – Helicopter Landing at Cunas. Successful release of the Chinese edition of our book 'Pigeon Blood Valley' last Friday in Taiwan at the '2016 Taipei Gemological Symposium'. The book premier was accompanied by a presentation of Dr. Peretti about with the topics 'Important Ruby Deposits' and 'The Formation of Kashmir Sapphires'. View on GRS Facebook Page. View on GRS Facebook Page.

OTHER SITES

GemResearch Swisslab (GRS) Specializing in Origin Determination of Fine Rubies and Sapphires

GRS GemResearch Swisslab AG is a private independent gemological research laboratory specialized on the issuance of origin and authenticity reports on rubies, sapphires and emeralds as well as other important coloured gems including spinel, tourmalines, garnets and jade. The research laboratory is highly equipped to identify today's advanced treatments. Regular trips to most important mines in the world are presented in documentaries and our own book series "Contributions to Gemology".

GRS GemResearch Swisslab AG | Specializing In Origin And Treatment Determination of Ruby, Sapphire and Emerald

GRS GemResearch Swisslab AG is a private independent gemological research laboratory, specializing in the determination of origin and authenticity reports for ruby, sapphire and emerald plus other important coloured gems including spinel, tourmaline, garnet and jade. GRS Seminar and Emerald book launch in Bangkok on 2 November 2017. The making of an international color standard by GRS - Pigeon's Blood and Royal Blue. GRS documentary 2016: Colombian Emerald Mines – Cunas Mine Underground. GRS documentary ...

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GemResearch Swisslab GRS Specializing in Origin Determination of Fine Rubies and Sapphires

https://gemresearch.info

GRS GemResearch Swisslab AG is a private independent gemological research laboratory specialized on the issuance of origin and authenticity reports on rubies, sapphires and emeralds as well as other important coloured gems including spinel, tourmalines, garnets and jade. The research laboratory is highly equipped to identify today's advanced treatments. Regular trips to most important mines in the world are presented in documentaries and our own book series "Contributions to Gemology".