An antique 14k white gold frosted glass bow design brooch set with a mixture of old round cut

An antique 14k white gold frosted glass 'bow' design brooch set with a mixture of old round cut and rough cut diamonds in an ornate setting, the back is intricately engraved with a flower pattern, approx. 4cm x 1.5cm, pin & safety catch, 8.67gm.