Bvlgari Bulgari Citrine & Tourmaline 18k Yellow Gold Hearts Hoop Earrings. This authentic pair of earrings are from Bvlgari, they are crafted from 18k yellow gold with a high polished finish featuring a concave style heart at the top with ribbed shrimp design hoops, the heart shape has two half heart gemstone joined together, one half citrine and the other green tourmaline. Comes with post omega backs and is signed by the designer with the metal content. Material: 18k yellow gold Hallmark: Bvlgari 750 Measurement: 0.79" long x 0.52" wide Gemstone: Citrine and green tourmaline (8mm long x 4.4mm wide each) Weight: 20 grams Stock#: 40105