blue apple co. halo art deco engagement bridal ring wedding solid simulated ruby round cubic zirconia 925 sterling silver, size-8 blue apple co. <p>item specifications: <br>metal type: sterling silver. <br>metal stamp or hallmark:. 925 <br>metal purity: 92. 5% sterling. <br>gemstone creation method: simulated. <br>face measurements from south to north: 8mm. <br>gemstone creation method: simulated. <br>