claw set octagonal zircon, approximately 8.5 x 7.8 x 5.45mm, estimated approximate weight 3.75ct, flanked by two old cushion cut diamonds, one approximately 8.5 x 7.9 x 5.9mm, estimated approximate weight 2.70ct, the other approximately 8.5 x 8.1 x 5.2mm, estimated approximate weight 2.40ct, assessed colour J/K, assessed clarity SI1/SI2, size P½, unmarked, tested as platinum, weight 7.3g, cased