Hermès, a gold and diamond necklace, 'Collier Double Tour Kelly', designed as a longchain composed

Hermès, a gold and diamond necklace, 'Collier Double Tour Kelly', designed as a longchain composed of graduated elongated links, to a a gold twist-action 'Kelly' clasp set with brilliant-cut diamonds, length 92.5cm, signed Hermès, numbered 18V009210, French assay marks for 18ct gold, French maker's mark FM with palm tree, gross weight 41.5 grams, fitted case and outer box stamped Hermès, certificate of authenticity and facsimile of original invoice dated 2021