Gemstones are valued based on the Four Cs - color, clarity, cut, and carat. Precious stones include diamonds, sapphires, ...
Archaeologists Find Engraved Semi-Precious Gemstones Clogging a 2000-Yr-Old Roman Bathhouse, Astounded by the Workmanship In ...
WatchPro curates timepieces that best spotlight the stone dial watches trend, from Dennison and Piaget to Dior and Christopher Ward.