French Art Deco unheated sapphire (laboratory certificate) and diamond ring

Type of jewelry: Old jewelry / Old ring
Period: Around 1935
Origin: French work (French hallmarks
Metal: 950/1000 platinum and 750/1000 gold (18 k)
Total weight (gross): 4 grams
Ring head dimensions: 1.7 cm x 1.5 cm
Finger size: 53 (sizing possible)
Nature of stones: Natural unheated sapphire (approximately 3.60 carat, Carat Gem Lab laboratory certificate indicating the absence of thermal modification) and modern diamonds (approximately 1 carat)
State of conservation: Very good state of conservation
Price: 3950 euros
Reference: 26 081 2