Hallmarked 9ct Yellow Gold - total metal weight, 3.047 grams. Genuine gemstones: Oval cut, cabochon Triplet Opal totalling 3.722 carats. Ring Size: UK P, US 7 1/2, French 56 1/2, German 17 3/4. Solitaire ring comes in a branded box with care card. Classic gemset jewellery, made by Ivy Gems.