Year: 2009 This is an authentic HARRY WINSTON Platinum Diamond .51ct HW Logo Engagement Set Ring 47 4. This ring is crafted in platinum and features a round brilliant cut diamond, weighing approximately .51 carats in a four prong setting with the letters "H.W." on the side baskets that represent House of Winston as well as “husband” and “wife”. This lovely solitaire ring is also paired with a platinum band. This is a beautiful ring set for the unforgettable style of Harry Winston! Follow this item for alerts. Harry Winston is a registered trademark of Harry Winston. FASHIONPHILE is not affiliated with Harry Winston.