Adjustable ring with octagonal glass cabochon mounted on a prong setting Does not darken over time* Adjustable size - ideal for a gift!Gilding guaranteed for one year Composition: Brass covered with 24-carat fine gold (3 microns) Glass Origin of materials: Design, Nantes, France Welding, Nantes, France Components, Paris, France Polishing, Nantes, France Gilding, Paris, France Your jewel will be delivered in its pretty "Un de ces Quatre" box