18K 14K Solid Gold Natural Gray Diamond Snug Rook Eyebrow Navel Daith Banana Curved Earring Barbell PiercingMaterial 14K yellow gold, 14K rose gold, 14K white gold 18K yellow gold, 18K rose gold, 18K white gold Post Gauge16G(1. 2mm), 18G(1. 0mm)Post Length(not include ball) 6mm, 8mm, 10mm, 12mm (if you want shorter or longer Bar Length please contact me for price) Measurement: approx. Pendant size : 3. 7mm Backing type: Threaded screw back, 3. 0mm in diameterMaterials 14K solid gold 18K solid gold shiny polished Main Stone Genuine Natural Gray Diamond(3mm)