... .color ;silver and gold 3.ODM OEM is OK costume diamond necklace specification:1.color sliver and golden2.material :copper alloy ... ) All kinds of jewelry are available ,like necklace, pendant, earring, ring, bracelet, brooch, etc.3) You can buy mounting or findings ... to match your own pearls, Tahitian pearl, Mabe, Akoy, etc.4) You can design your own jewelry ...