You may be thinking the diamond factory gets to “mark its own homework” if the grading machine is in-house, and that it could cheat the system to get a better grade. But Ben-Ari is adamant that the ...

Leibish & Co., unveiled its World of Colors guide for identifying fancy colored diamonds in New York Thursday (January 19). A day earlier, I spoke privately with Leibish Polnauer, the president and ...

The jewelry industry’s most respected gemological authority has announced a change in how it will evaluate lab-grown gems. By Amy Elliott A certain type of engagement ring seems to have reached peak ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. All over the world, gift-giving is a clear sign of love, caring, and ...

RAMAT GAN, Israel – An Israeli company says it has invented a machine that can instantly grade the clarity of polished diamonds — a development it says will bring new standards to a painstaking ...