Intricately carved Red Agate stone image, from 1870-1890 Unmarked/tested 10K Yellow Gold Victorian brooch

Museum Antique Red Agate stone carving imbedded in the tested 10K rose gold brooch. Cameo depicts a young Victorian beauty circa 1880 (before mass hallmarking). Total measurements is 0.87"/22.2 mm tall by 1.24"/31.7 mm width. Weight -3.7 gram. Has been discretely tested and guaranteed to be the metal content stated. Has been tested with a Thermo Scientific Niton XL2 gun.