GIO CAROLI DIAMOND SET 18K & OXODIZED METAL TURTLE BROOCH: Italian designer Gio Caroli, known for his designs in the 1960's and 70's. 18K yellow and oxidized metal figural brooch set with 66 round single cut diamonds all totaling approx. .50 Ct. Rated VS in clarity and G-H in color. The diamonds are knife set. Length 1.25''. Weight: 11.8 grams Bar pin closure. Signed: Gio Caroli.