Ben Rosenfeld - A turquoise and diamond cluster ring, of bombé design, features a centralised cluster of nineteen turquoise cabochons, framed by a granulated border and embellished with eight brilliant-cut diamonds, superimposed upon a foliate design mount in 18ct yellow gold, finished with wired shoulders and shank, London hallmarked '18' with maker's mark 'BRLd', 1970, ring head measures 2.0 cm across, ring size K½, total weight of item 13.1 grams.