Solitaire Art Deco Diamond Ring 3.55 Cts In Platinum Mounting

Platinum solitaire ring (hallmark: mascaron) set in its center with a brilliant cut diamond, weighing 3.55 Cts.
Diamond sold with a gemmological report from the LFG (French Gemmology Laboratory) specifying: color L, purity P1, no fluorescence.
Art Deco, 1930s.

Gross weight: 3.60 g
Finger size: 56 (diameter 17.75 / US 7.50)
Height: 1.00cm

Condition: very slight micro scratches on the platinum parts, natural inclusions in the diamond , see photos.