ADAM'S Fine Jewellery & Ladies Watches 12th May 2026

189 202 A DIAMOND SINGLE-STONE RING The European-cut diamond weighing approximately 4.30cts, within a four-claw setting and tapered baguette-cut diamond shoulders, with maker’s mark ‘RM’, ring size K € 15,000 - 20,000 203 A DIAMOND HALF-ETERNITY RING The frontispiece with princess-cut diamonds within chan- nel-setting, mounted in 18K gold, with maker’s mark NN, English hallmarks, European Convention mark, ring size K € 800 - 1,200