A turquoise and diamond suite, circa 1960, designed as a graduated series of oval turquoise cabochons, with brilliant-cut diamond petals to alternating sides and undulating ropetwist detailing between, the ring and earrings en suite, fitted case, total diamond weight approximately 3.80 carats, necklace length 46cm, ring size M, earring length 45mm. £2,000-£4,000