New York—The Worldwide Gemological Institute introduced it has begun issuing experiences for lab-grown moissanite from one firm, Dallas-based distributor Roseco Inc.

The IGI Certificates of Authenticity state the lab has verified the fabric as man-made moissanite (there’s pure moissanite, although this can be very uncommon), whereas additionally giving the stone’s carat weight, form and “colorless traits.”

IGI mentioned it would difficulty the certificates for Roseco moissanite in all shapes and weighing between 0.50 and 5 carats. 

Roseco will promote the IGI-certified stones each unfastened and set in stud earrings, solitaire rings and solitaire pendants. 

This system is designed to guard shoppers as an growing variety of synthetics, simulants and counterfeits come to market, IGI mentioned. 

“There are numerous totally different gemstone and jewellery choices available on the market, which is nice, but it surely can be complicated,” IGI North American President Avi Levy mentioned. “Our laboratory evaluation and verification will assist retailers and shoppers be assured of the authenticity and high quality of the Roseco moissanite they’re promoting and shopping for.”

IGI mentioned it has issued gem identification experiences on moissanite for years, as do different labs, together with the Gemological Institute of America and the Gem Certification & Assurance Lab. 

This report for Roseco, nonetheless, is the primary to incorporate customized data fields such because the Refractive Index and Dispersion comparability chart, the lab mentioned.

A French scientist named Henri Moissan is credited with discovering pure moissanite, which he discovered close to a meteor crater in Arizona in 1893. Scientists perfected the method of rising it in a lab within the Fifties. 

The fabric has a better refractive index than diamond at 2.69 and ranks between 9.25 and 9.50 on the Mohs hardness scale, above corundum (sapphire and ruby).