Shop › Silver Synthetic Opal & CZ Bracelet Image 1 of 3 Image 2 of 3 Image 3 of 3 Silver Synthetic Opal & CZ Bracelet £45.00 925 sterling silver bracelet set with four synthetic blue opals in cubic zirconia halo setting. Length 6.5-7.5 inches. Purchase Added! 925 sterling silver bracelet set with four synthetic blue opals in cubic zirconia halo setting. Length 6.5-7.5 inches.