Pigeon blood Burmese ruby and diamond crossover ring in platinum and gold

Pigeon blood Burmese ruby and diamond crossover ring in platinum and 18kt yellow gold. Set with a cushion shape mixed cut Pigeon blood Burmese ruby in a claw setting, adjacently set with a 1.00ct cushion shape Old Mine cut diamond in a platinum claw setting, further set with two round Old European cut diamonds in platinum claw settings, fitted with twisting diamond set shoulders with millegrain details that terminate to a smooth shank. Marked 18kt gold. Accompanied by a Gemmological Certification Services certificate.