The Sinai Turquoise: Hammered Turquoise Signet RingThe Sinai Peninsula has been mined for turquoise since 3,200 BC the ancient Egyptians called it mefkat, the stone of joy, and set it into the rings of pharaohs and high priests. This wide octagonal band continues that 5,000 year tradition: a single round turquoise cabochon, sky blue and luminous, sits bezel set at the center of a broadly hammered gold band whose faceted silhouette references the geometric precision of ancient Egyptian goldsmithing. A