Explore the forgotten standard in our rare 12ct collection. This unusual purity, briefly popular in certain periods and regions, offers unique colour between 9ct and 14ct. Each authentic ring represents jewellery history's quirks; pieces that don't fit modern categories yet possess distinctive character. From a time in Victorian history when 12ct was a standard, discover rings that spark conversation among collectors. Perfect for those seeking the unusual; these rings prove that antique jewellery still holds mysteries worth exploring.