Sterling Silver Sapphire Zirconia Marcasite Ring Size 7.5
11 3mm Zirconia with square Marcasite rows on both sides.
Stamped .925 Sterling Silver 6mm shank.
Cubic zirconia is crystallographically isometric,
an important attribute of a would-be diamond simulant.
Marcasite is a metallic, black-grey stone, similar in chemical makeup to pyrite, but different in crystal structure. It is machine cut and polished, giving jewelry made with it an antiqued vintage look.