Hallmarked 9ct Yellow Gold Opal Eternity Ring Size N 1/2, O 1/2
9ct = 375 = 9k = 9kt. Is this item hallmarked?. Gemstone Type : Opal. Looking to have a ring sized?. Band Width : 3mm. UK ring size : N 1/2, O 1/2. Is this ring sizeable?. Gold & Platinum Purity Reference .