Faceted Rose Quartz Pendant in Wire Wrapped Argentium SilverReversible Faceted Rose Quartz Pendant in Wire Wrapped Argentium Silver. One side features a Swarovski Crystal and the other side has an Aquamarine Accent. Approximately 1 3 4" long and 3 8" wide. Argentium silver contains a greater amount of pure silver (935 which contains 93. 5% pure silver with the remainder being made up of other alloys, such as a small amount of germanium). This makes it more tarnish resistant than Sterling (. 925) Silver.