Tiffany & Co. Platinum Round Brilliant Cut Diamond Solitaire Ring

A round brilliant-cut diamond solitaire in solid platinum by Tiffany & Co., showcasing the classic 57–58 facet architecture: a table facet with 8 crown mains, 8 pavilion mains, 16 upper-girdle and 16 lower-girdle facets, and a culet (when present). This precise facet arrangement is engineered for balanced white-light return and lively scintillation within a true-round outline. The platinum solitaire mounting presents a clean, streamlined profile that centers attention on the diamond while providing robust, long-wearing support. Technical details: metal—platinum; stone—diamond, round brilliant cut; setting—solitaire. Carat weight, color, and clarity are not specified. A refined, technical showcase of the round brilliant in enduring platinum.