A rectangular plaque centered by an old mine-cut diamond circa 1.7 cts (measuring approximately 6.84 x 6.80 mm,) within a border of old mine-cut diamonds, on a hardstone, silver over gold, weight 10.5gm, measuring 2.3 x 2.0cm. The antique original brooch is now transformed into a ring with the addition of a handmade square 18kt gold shank, USA size 6, resizable. Stamped 18k, JCC and numbered A3272