Jet: 0.50 carat 4mm Black Russian Ice on Fire CZ Cast Basket Stud Earrings 925 Silver, 0651 Gemstones hand-set into a professionally made lost wax cast basket setting! No flimsy snap-in settings here! Features a pair of 4mm, 0.25 carat each, Jet Black Russian Ice on Fire CZ gemstones. Unisex Style and Design! A great choice for men and women alike! Made with solid 925 Sterling Silver!