In the shadowed chambers of ancient India, nearly 3,000 years ago, the first rudimentary diamond polishing began. What ...

Diamond giant De Beers slashed the price ... include big rocks between two and four carats that can be cut into smaller polished stones used in high-quality bridal rings, the outlet reported.

Stone age craftsmen in China were polishing objects using diamond 2,000 years before anyone else had the same idea, new evidence suggests. Quartz was previously thought to be the abrasive used to ...

Cut and polished diamond exports, which usually account for ... “US buyers were loading up in March before the tariffs kicked in. Indian exporters were also rushing to ship out US orders first ...