Silver Turquoise Stud EarringsTurquoise Stud Earrings These stud earrings are set in sterling silver and feature circular 8mm natural turquoise stones. Each turquoise is cut as a cabochon, a smooth and polished domed shape without facets, designed to showcase the stone's natural colour and texture. The settings are made from sterling silver, an alloy composed of 92. 5% pure silver, which provides a bright and durable finish.