Item #: 501579 This is an authentic TIFFANY Platinum Diamond .18ct Harmony Solitaire Engagement Ring size 47 4. This lovely engagement ring is crafted in platinum and features a round brilliant cut diamond with a total approximate carat weight of 0.18 carats. Enjoy this special ring for someone special with the unforgettable style of Tiffany! Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.