"This listing is for 1 PIECE, not a pairGemstone Ball :3mmMaterials: 14k real solid gold (pin and backing) Gemstone:  Sky(Turquoise) Green (Malachite )Bar TypeBar gauge: 20g (0.8mm)  Bar long :6mm or 8mmBacking Type : Ball(3mm) or butterfly back (3mm) Minimalist Single Green Earring, Hypoallergenic Green 14k Gold Jewelry, Hypoallergenic 14k Gold Green Jewelry, Green Pierced Cartilage Earrings As Gift, Nickel Free 14k Gold Filled Green Jewelry, Nickel-free 14k Gold-filled Green Jewelry, Nickel-free Green Jewelry In 14k Gold Filled, Nickel-free Green Jewelry In 14k Gold-filled, Nickel Free Green Jewelry In 14k Gold Filled