18K ANTIQUE 3.25 CTW DIAMOND BROOCH / PENDANT Circa 1910-1920: 18K white gold brooch/pendant contains 40 old European round and early round single cut diamonds. 26 round rose cut diamonds. Total Weight: 3.25 Ct. Approx. The diamonds average VS in clarity and G-H in color. The diamonds are prong set. Locking bar pin closure and hidden fixed bail. The diamonds are bead, prong and bezel set. Weight: 10.6 grams.