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. In many cases a gemstone especially a higher end stone will come with a gemological certificate included. This individual document number is critical to substantiate a reports authenticity. Pigeon s blood pigeon s blood color should have the exact red hue color with medium tone and vivid saturation however some grs certified stones which were given this color range i found to be either too pinkish red or purplish red range. Each report bears a unique 10 or 11 digit number e g.
Certified 2 75ct natural pear shape colombian emerald pair loose gemstone. We offer an unmatched collection of natural untreated gemstones at wholesale prices all certified by international gem labs like gia grs igi. Couple of burma myanmar 2 carat rubies certifed by grs as vivid red grs type. Mined in sri lanka certified by grs. Many trained gemologists can do gemstone identification but it is always best to have a gemstone certified at a gemological laboratory that.
The grs is an international voluntary full product standard that sets requirements for third party certification of recycled content chain of custody social and environmental. Buy grs certified gemstones for sale online. Make offer 7095 cts natural blue sapphire huge museum size faceted cut certified gemstone. Grs gemstone reports include the following data based upon our judgment on the day of testing. Browse our daily deals for even more savings.
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Why buy from us 100 satisfaction guaranteed. Make offer 10 24cts grs certified 100 natural yellow green color demantiod unheated garnet 10 95 carats natural unheated blue sapphire loose gemstone new sri lanka 30 000 00. Gemstone testing the continuing works of grs are the most reliable guarantee for sustaining high standards seen in their universally acknowledged lab reports which ensure the authenticity and origin of elegant gemstones. In other cases a dealer can arrange certification for a gem usually at a nominal cost. Why buy from us 100 satisfaction guaranteed.In other cases a dealer can arrange certification for a gem usually at a nominal cost. The grs is an international voluntary full product standard that sets requirements for third party certification of recycled content chain of custody social and environmental. Certified 2 75ct natural pear shape colombian emerald pair loose gemstone. 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.
