Handmade sterling silver Moss Agate twisted rope oval brooch 2" 12.8g JR9747

Beautiful hand polished moss agate oval natural stone, it is semi translucent under the light, mounted on handmade custom bezel, with twisted rope border. Fish hook clasp, with 3" safety chain & pin. The stone has natural formation patina on top. It measures 2.0" x 1 3/8" large size, weight 12.8 gram, no hallmark, tested for sterling on the frame, silver tone on the clasp