Sterling over 18K diamond floral spray brooch from the mid-19th C. This lovely three dimensional brooch has a prong set Old Mine Cut center stone and numerous rose cut diamonds of varying sizes throughout. Brooch measures 2 3/8" long and 3/4" wide (at widest). The back of the brooch is yellow gold with a trombone clasp. There appears to be a very small repair spot on the back of the brooch (just found on close inspection), otherwise excellent condition. There is an indistinguishable punch mark on the stem. Circa 1860.