This is an authentic TIFFANY Platinum Diamond .23ct Harmony Solitaire Engagement Ring size 48 or 4.5. This engagement ring is crafted of platinum and features a 3mm band that holds a round brilliant cut diamond approximately weighing .23 carats, with VS1 clarity and H color. Follow this item for alerts. Tiffany is a registered trademark of Tiffany. FASHIONPHILE is not affiliated with Tiffany.