From Brooke's Orbit Collection, one of a kind 18k Gold Tourmaline and Emerald Heart Stud Earrings. 18K Gold Tourmaline and Emerald Heart Earrings with 18k gold stud closure. - Metal: 18k yellow gold - Stones: Tourmaline 0.79 ct, Emerald 0.05 ct - Setting Measurements: 9 mm × 6 mm