Sapphire cluster ring

A sapphire and diamond cluster ring, centred with a cushion-cut sapphire of 8.6mm x 7.0mm x 5.1mm, approximate weight 3.19ct, encompassed by twelve round brilliant-cut diamonds with an estimated total weight of 0.75ct, between chenier shoulders to beaded shank, in white metal stamped ‘PLAT’, ring head 1.4cm x 1.2cm, ring size P (with sizing beads), 4.3 grams.

Accompanied by a verbal report by Gemmological Certification Services stating the sapphire is of basaltic deposit origin, with no indications of treatment. (Ref: 5786-2773)