METAL: 18k Gold. MEASUREMENTS: Earrings are 35mm x 14mm. Bottoms are removable, earrings can be worn as simple hoops. GEMSTONES: Chalcedony cabochons - 12.2mm x 9.2mm, diamonds - approx. 0.80ctw. MARKED: B-11p, 750. WEIGHT: 8.9 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, unless stated otherwise.