These 14k white gold round opal stud earrings feature 4 mm genuine natural opals with a 0.32 ct total weight. Size/Dimensions: Earring Dimension: 0.13 in / Stone Dimension: 4 mm Occasion: Mother's Day Metal Stamp: 14 kt Gem Weight: 0.32 Gift Box: Gift Box Material: White Gold Stone: Opal Stone Shape: Round