Art-Déco period ring in white gold and platinum adorned with an octagonal emerald, 1,39 carat, surrounded with old-cut diamonds

Engraved FS - IR
Ring size: 52
Gross weight: 4,4 g
With a CGL laboratory certificate n° CGL30254 dated 30/10/2023 indicating:
Origin: Colombia
Treatments: Minor impregnation (oil)