Antique trilogy diamond ring. Old European cut diamonds are carefully arranged, with the three central stones supported by slender prongs in a beautiful design. The large diamonds do not show any color, and inclusions can be seen, but you can enjoy their beautiful sparkle with the naked eye. A metal analysis report is included. The gold portion is about 70% gold, equivalent to K16-K17. The silver portion is mainly niobium, with about 30% platinum. It is presumed that it was sold as a K18 and platinum gold back, both at the time and in modern antique jewelry stores. Engraving: Number stamping is unclear, and there is a possibility of later engraving (see image). Material: See description, diamonds Central three diamonds: Approximately 4.3-4.4mm each Size: Size 11 Weight: Approximately 3.3g Accessories: Mini card (UGL) A4 report (with writing, X-ray inspection) In beautiful condition for its age. ❀ #mare_antiques ❀