This is an authentic HARRY WINSTON Platinum Diamond 1.40ct Classic Winston Round Brilliant Engagement Ring size 51 or 5.75. The ring is crafted of platinum and features a center-round brilliant cut diamond weighing approximately 1.40 carats, with F color and VS1 clarity, between two tapered baguette cut diamonds weighing approximately .32 total carat weight. The diamonds on this ring total at 1.72 total carat weight. Follow this item for alerts. Harry Winston is a registered trademark of Harry Winston. FASHIONPHILE is not affiliated with Harry Winston.