From Brooke's Orbit Collection, one of a kind 18k Gold Tourmaline Heart Earrings with Ruby Halo. 18K Gold Tourmaline Heart Earrings with Ruby Halo and 18k gold stud closure. - Metal: 18k yellow gold - Stones: Tourmaline 1.86 ct, Ruby 0.14 ct - Setting Measurements: 9 mm × 10 mm