Inlaid gold pendant

Gold and garnet pendant, length with loop 1.4 cm. Cabochon garnet, sub-triangular with rounded corners, set in thin sheet gold collar cut into chevrons with dog-tooth effect - plain sheet gold backplate - no projecting rim, and only 2 fine beaded gold wires around edge, one above the other. Loop made from strip of corrugated gold, apparently flat inside, soldered to top and continued only very slightly down back where cut off into triangle. Loop shows slight wear; beading on edge worn smooth at outer edge.Lab results: AuAgCuBack72253Beading75214Loop72244