Edwardian Tested 18 Karat Yellow Gold and Platinum Topped Diamond Floral Pendant Brooch,Circa 1910,Set with three large old mine cut diamonds each weighing approximately 1.25, 1.35 and 1.50 carats, five smaller old mine cut diamonds weighing approximately 2 carats and seventy-five old mine and rose cut diamonds weighing approximately 4.50 carats.,Total weight of diamonds: 10.60 carats,Length: 2 in (5.1 cm),Diameter: 1-1/2 in (3.8 cm)