Beautiful pin - vintage plate, "Art-Nouveau", in rose gold openwork setting with engraved platinum views ...

Beautiful pin - vintage plate, "Art-Nouveau", in rose gold openwork setting with engraved platinum views, with a clean and brilliant white central geometric motif set with brilliant-cut diamonds in chaton and bands engraved with diamonds. Weight 1 bte: 0.25 ct, 12 bts: 0.90 ct, 130 dts: 2.60 ct approx. (two are missing). 21 x 51.5 mm.
Weight: 10,2