Oxford Diamond Co Sterling Silver Heart Halo Simulated Gemstone Promise Ring All Colors Available (4, Blue (Simulated Sapphire)) Go to amazon.com Related posts sapphire ring size 4 buyer's guide FeatureSizes 4-128mm WideSolid Sterling SilverSatisfaction Guaranteed!Ships from the United States DescriptionWe use the finest quality of .925 Sterling Silver. Each piece is crafted to exceed your expectations! The perfect Gift for a loved one!