Antique Art Deco Old European Diamond Brooch Pendant Platinum 3.19 ct 18.3 mm

An antique Art Deco Old European cut diamond platinum brooch/pendant, measuring 18.3 x 34.2 mm, 3.19 ct total weight. The center diamond weighs 0.68 ct, G in color and SI2 in clarity (known weight), with the second-largest stone a 0.31 ct Old European cut diamond, H-I in color and VS in clarity. Further single, Old European and transitional cut diamonds add approximately 2.2 ct, E-H in color and VS-SI in clarity. The brooch weighs 12.3 grams.