Art deco unheated royal blue sapphire and diamond ring (laboratory certificate)

Period: Circa 1930
Metal: Platinum 950/1000
Total weight (gross): 4.27 grams
Ring size: 59 (can be sized)
Nature of the stones: Unheated natural sapphire of approximately 2.20 carats (Bellerophon Gemlab Paris Place Vendôme laboratory certificate indicating the absence of thermal modification and a royal blue color, 8 x 8 diamonds
State of conservation: Very good state of conservation
Price: 4850 euros
Reference: 06 042 2