Victorian Hallmarked Amethyst Bar Brooch. It is european 9ct gold, and is marked 375, with the hallmarks added on the back, and on both ends of the back of the brooch. The approx 3 ct Amethyst is heart shaped and is a super deep violet color, and the ends of the brooch are scrolled, in typical Victorian patterns. The brooch is 1 7/8 inches wide, and 5/8 of an inch long.