A 0.64-carat fancy diamond was found to have a synthetic coating The Gemological Institute of America (GIA) has announced that in its recent examination of a 0.64-carat fancy greyish-greenish-blue cushion modified brilliant-cut diamond, it found a chemical vapour deposition (CVD) layer grown on top of it. The composite was found to be “consisting of a […]
The post GIA spots a CVD layer grown on a natural diamond appeared first on The Jewelry Magazine.
]]>Retailers participating in GIA’s Retailer Support Program can now use an enhanced collection of colored stone materials to tell the story of these beautiful gemstones to their customers. The materials – including brochures, counter displays and a birthstone flipchart – further the program’s mission to help retailers educate consumers about diamonds, colored stones and pearls, […]
The post Celebrate coloured stones with GIA’s Retailer Support Program appeared first on The Jewelry Magazine.
]]>GIA (The Gemological Institute of America) announced it will introduce the GIA Diamond Origin Report service which will confirm the country of origin of polished diamonds. To be eligible for this new service, the original rough diamonds and resulting polished diamonds must be submitted to GIA for analysis so that they can be matched to […]
The post GIA launches new diamond country of origin reports appeared first on The Jewelry Magazine.
]]>On April 30, GIA will introduce the GIA Diamond Origin Report service which will confirm the country of origin of polished diamonds. To be eligible for this new service, the original rough diamonds and resulting polished diamonds must be submitted to GIA for analysis so that they can be matched to each other and to […]
The post GIA to introduce new Diamond Country of Origin Reports appeared first on The Jewelry Magazine.
]]>