Black Spinel Faceted Coins measure approximately 6mm to 6.5mm diameter by 3mm depth in size, these coin shaped beads exhibit a vitreous luster, this group of Black Spinel beads has superior polish and cut creating a symmetrical shape, the beads are well matched on strand for a beautiful & highly brilliant gemstone group, and these Spinel beads are an opaque black hue with great brilliance and make.