Beryl: 13mm Ionic Plated Gold-tone Edged Compact Hinged Snap Hoop Earrings 316 Stainless Steel, 0139 Features a Hinged Snap clasp design. The diameter of the earrings is approximately 13mm (or just about 1/2") and the thickness of the earrings is 4mm. Made with solid 316 Stainless Steel The set weights approx. 3.4 grams.