Year: 2017 This is an authentic HARRY WINSTON Platinum Diamond .74ct Tryst Engagement Ring size 46 or 3.75. The engagement ring is crafted in platinum and features a round brilliant cut diamond, approximately .74 total carat weight, with D color and VS2 clarity. The ring also features four additional accent diamonds weighing approximately .06 total carat weight. Follow this item for alerts. Harry Winston is a registered trademark of Harry Winston. FASHIONPHILE is not affiliated with Harry Winston.