"Marquise" Ring in 18K White Gold and PlatiniumSet with 3 brillant cut diamonds ( the center estimated at 0. 15 carats, the two smaller ones approx. 0. 06 carats each), surrounded by 12 single_cut diamonds ( 8x8 cut, approx. 0. 024 carats each). Estimated total diamond weight: approx 0. 51 carats Total weight: 4. 40 grams Ring Size: European 56 ( approximately US size 7. 5) Hallmarks: French eagle's head (18k gold) and dog's head (platinium) Origin: French work from the 1950s Available at 107 Rue