18k White Gold, Diamond & Sapphire Ring
18k White Gold, Diamond & Sapphire Ring. TheÂ XPANDABLEâ„¢ Collection is aÂ revolutionary new line of diamond and gemstone jewelry that uses innovative - and invisible - technology to expand and contract, solving a myriad of comfort challenges. A first in the High Jewelry arena, the Xpandableâ„¢Â Collection combines knockout designs with perfect fit. Rings stretch easily over the knuckles and contract back in place.