French Art Deco diamond ring (2.80 carats including central 1.38 carat with certificate)

Period: Art Deco around 1930
Origin: French work
Metal: Platinum 950/1000 and gold 750/1000 (18 k)
Total weight (gross): 3.5 grams
Dimensions (ring head): 1.8 cm x 1.3 cm
Finger size: 58 (possible resizing)
Nature of stones: Old cut diamond (approximately 2.80 carats including central 1.38 carat certificate from the French Gemmology Laboratory I VS2)
Conservation condition: Very good preservation condition
Price: 8600 euros
Reference: 20 064 2