The brooch is stamped 15ct ( the 1 and part of the 5 is rubbed away ) and is thought to be 15ct gold.
Very fine antique 15ct gold bar brooch set 3X heart citrine yellow topaz C.1900
Antique Victorian Sweetheart Bar Brooch Pin Marked M&J C Clasp Ivy Heart
Antique Victorian Marked 12k Gold Filled Heart Citrine Bar Brooch
CHARMING, SOLID SILVER 'SUNFLOWER DESIGN BAR BROOCH
12K Gold Filled Children's Silhouette Name Charm Bar Brooch Pin Jeff and Sue 15