A platinum halo cluster ring featuring a centrally set oval-cut ruby. The gemstone is held in a four-prong setting and is surrounded by a halo of approximately sixteen round brilliant-cut diamonds. The setting is constructed with a tiered, openwork basket gallery that transitions into a smooth, tapered platinum shank. The interior of the band is stamped with the mark Pt900, indicating a 90 percent platinum purity. An additional stamp of 0.20 on the interior shank represents the total diamond carat weight of the accent stones. Weight: 3.4g Size: US 6.75 - 7.