1998-W 1/2 oz Platinum Eagle Approximate Current Value: $475 Diameter: 27.00 mm Mintage/Proof: 0 / 13,836 Weight: 15.56 grams Metal: Platinum I Own 1998 American Platinum Eagle (1997-Present) Add To My Collection View My Collection Information and History of 1998-W 1/2 oz Platinum Eagle Value of 1998-W 1/2 oz Platinum Eagle Share: