Metal: 14k solid gold, Not Plated or Gold Filled Available Gold color: Yellow gold Stone: Natural Black Onyx / garnet Thickness: 0.82mm (20G) , 1.0mm (18G), 1.2mm (16G) Stamp: 14k on top or 14k gold back, no stamp on titanium back, ★Threadless Push Pin (Flat Back) ★ We have two different materials of Push back for you choose: ● One is 14k solid gold with length : 6mm(standard), 8mm, 10mm (long) ● Another is implanted grade titanium push back in size 5mm(short) 6mm 8mm and 10mm(long) ● Flat…