It weighs 2.9 grams exactly, not an estimate, I have just weighed it and is hallmarked. Do not worry if it needs slight adjustment, just get it altered. When it has gone, there will be no more. The item "9CT WHITE GOLD DIAMOND SET DRESS / WEDDING RING BRAND NEW IN BOX PURE QUALITY" is in sale since Monday, February 15, 2016. This item is in the category "Jewellery & Watches\Fine Jewellery\Fine Rings\Diamond".The seller is "leslie7042" and is located in Ware, Herts. This item can be shipped worldwide.