Composed of a line of gold plaques set with brilliant-cut diamonds, alternating with oval and cushion-shaped rubies, supporting a pendant set with a pear-shaped diamond weighing 21.04 carats, one detachable link, length approximately 700mm, shortest length approximately 630mm, signed M. Gérard, numbered, French assay and maker's marks. 

Accompanied by GIA report no. 1176177640, stating that the diamond is D Colour, VVS1 Clarity. 

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 17 mai 2016, 10:00 AM