River Island Jewelry &ndash;&ldquo;5 Pairs&rdquo; Sterling Silver Square CZ Stone Cubic Zirconia Stud Earrings 3mm, 4mm, 5mm, 6mm RIVER ISLAND JEWELRY CZ STUD EARRINGS: Brighten your everyday with a fashion classic. Brilliant-cut round CZ solitaire studs dazzle in a luminous Sterling Silver 4-prong setting HIGH QUALITY CZ STONES: River Island Jewlery CZ Stones is simply one of the finest diamond simulants on the market. With color, Our Cubic Zirconia provides a breathtaking level of brightness like no other brands CRAFTED OF STERLING SILVER: River Island Jewelry never compromises on quality. These beautiful earrings are made up of sterling silver which is considered perfect for body jewelry.