HEATKEYS

Gem Certification and Assurance Lab (GCAL) is a diamond research and identification laboratory that offers a zero tolerance guarantee on all of its grading certificates.

Spinel Source: Finest In Natural Spinel From Around The World

The largest gemology study and reference site on the internet

We are a supplier of semi-precious gemstone rough as well as semi-precious & precious gemstones cut to customer specifications. We cut our stones from our rough, we source stones through our contacts in producusing countries like Brazil, Tanzania...

Info Antwerp diamonds suppliers, best diamond reliable wholesale deals. Buy certified diamonds, engagement rings at trade wholesale price in Antwerp World Diamond Center Exchange Antwerpsche Diamantkring Factory

Watch Parts Watch Tools and Jewelry Findings plus Jewelers Tools jewelry Supplies. Wholesale watch bands wholesale jewelry findings wholesale jewelry supplies; watch tool kits, jewelers tools, loose gemstones

Washington Diamond offers Ideal GIA certified diamonds, platinum diamond engagement rings set exclusively with the highest quality GIA certified diamonds, exceptional diamond wedding bands, custom wedding rings, and unique find jewelry. We are direc...

The Gemological Institute of America, GIA, introduces the new cut grading standard for round brilliant diamonds, the GIA Diamond Cut Grading System and a free online tool for predicting the cut grade of a diamond, the GIA Facetware Cut Estimator. Cu...

Joomla - the dynamic portal engine and content management system, A mounting makes color grading a challenge because it interferes with a clear pavilion view, and the color of the metal can influence the dia?mond