HEATKEYS

Sell diamonds easily and with confidence. Diamond Whisperer is a member of the Jewelers Board of Trade and the Jewelers Vigilance Council. We buy tens of thousands of diamonds each year.

Museum of Portable Gemscales for the gem and jewelry industry

Sell diamonds for best prices, we buy diamond rings, jewelry or loose diamonds, any size, grade, condition. Valuations by GIA trained team. Cash in 24 hours

CSGNetwork Free Information. Calculators, Converters, Glossary, Open Source Code... find something. Most pages require JavaScript.

Learn About Diamonds, Precious Gemstones, Jewelry, Colored Gem Grading & Basic Gemology

Free Online Math Calculators and Converters. Mathematics Calculation is made easier.

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

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...

Metric Conversion calculators, tables and formulas for temperature, length, area, volume and weight metric conversions.

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.

Online guide to gemstone prices for industry professionals. Gemstone current market values, free online appraisal.

When selecting a diamond, it is important to understand how diamonds are graded. There is a universal tool for classifying, and pricing, diamonds.

An online magazine & blog dedicated to jewelry. Articles on gemstones, precious metals, rings, necklaces, bracelets, jewelry care, and jewelry shopping.