Color Sappire pierced K18 Marerial・K18YG,Sappire Size ・14mm in height 10mm in width Origin・Made in Japan (one ear piercing) The Stone looks very beautiful because it is seen below. "Sapphire" The words of the Stone are "sincerity", "charity" and "virtue". September birthstone. Sapphire is a mineral called corundum, which is second only to diamond in hardness. A variety of colors from light colors to dark colors make people happy.