Art deco unheated sapphire and diamond ring (laboratory certificate)

Period: Circa 1930
Metal: Platinum 950/1000
Total weight (gross): 4.80 grams
Ring head dimensions: 1.6 cm x 1.2 cm
Ring size: 52 (can be sized)
Nature of the stones: Unheated natural sapphire (0.99 carat Carat Gem Lab certificate indicating the absence of thermal modification), calibrated sapphires, old-cut and rose-cut diamonds
State of conservation: Very good state of conservation
Price: 4250 euro
Reference: 28 071 4