Circa 1920's Pearl and Diamond Brooch in 15ct Gold and Platim

An exquisitely details brooch from the early 20th Century depicting a bunch of grapes created by small white pearl, 14 in number and arranged in a tiered fashion. The leaves are platinum-topped, set with an old cut diamond and with a frosted, textured finish. White wire tendrils flow along the bar which again is platium-topped. The reverse of the brooch is 15ct gold. A hinged pin and safety pin catch with push-up safely clip - all in good working order. The back of the bar is stamped "15ct PLAT". Details 2.25 inches long grapes measure 0.76 inch long x 0.38 inches wide approx max marked plat/15ct