Tiny Emerald marquise Flat Back Stud Earring is the perfect for cartilage, helix, upper lobe piercings. SOLD AS A SINGLE EARRING, buy two for a pair. 14K Gold PVD plated on medical grade Titanium Amethyst Cubic Zirconia Gemstone Marquise 4mm x 2mm Post Length 6mm, Thickness 1.2mm(16ga) Front threaded flat back closure #J015-TGAM