Sapphire set on Yellow Gold Seam RingA beautiful purple sapphire clasped within a golden angular setting, mostly backless, with a hint of texture showing through. I enjoyed making this one and almost kept it for myself16ga seam ring with an 8mm interior diameter. Important Stuff: Style: Seam Ring Shape: Round Material(s): Yellow Gold, Sapphire Color(s): Gold, Purple Wearing Size: 16ga Dimensions: 11mm (7 16"), 12mm (. 47") Interior Diameter: 8mm (. 3") Thickness: 2mm