Exceptional ring in platinum (850‰) adorned with a rectangular cut sides emerald of approximately 4 carats, within a surround of ten ol

Exceptional ring in platinum (850‰) adorned with a rectangular cut sides emerald of approximately 4 carats, within a surround of ten old-cut diamonds
EU ring size: 48
Gross weight: 8,1 g
Accompanied by a certificate of the Gubelin Laboratory n° 22100154 dated 11/11/2022 stating:
Origin : Columbia
No traces of treatment