A sapphire and diamond necklace, designed as a series of swags in a scallop shape pattern formed of flat textured link chain, with a round brilliant cut diamond between each curve suspending a drop shape sapphire, the necklace with a total length of 39cm, marked '750' to the clasp, total weight 43.8 grams

Provenance: from the family of Harvey Firestone, founder of the Firestone Tire and Rubber Company, one of the first global makers of automobile tyres; and thence by descent.