Year: 2015 This is an authentic HARRY WINSTON Platinum Diamond .50ct HW Logo Engagement Ring. The ring is crafted of platinum and features a round brilliant cut diamond, approximately .50 carat with F color and VS1 clarity, in a stylized four-prong setting with 'H' and 'W' motifs along the basket. Follow this item for alerts. Harry Winston is a registered trademark of Harry Winston. FASHIONPHILE is not affiliated with Harry Winston.