Marguerite ring in platinum (850‰) adorned with a facetted oval ruby weighting 4,5 carats approximately, in a surrounding of 12 round d

Marguerite ring in platinum (850‰) adorned with a facetted oval ruby weighting 4,5 carats approximately, in a surrounding of 12 round diamonds
French production of the 1960s-70s
EU ring size: 53
Gross weight : 8,1 g
Accompanied by a preliminary examination by the Laboratoire GEM Paris, n° 20221976225 indicating :
Origin : Myanmar
Unheated