Weighs approx 3 grams and is 46mm wide. Topaz is a good size approx 9mm square. Stamped clearly to the rear 9CT. The surface of the Topaz exhibits some wear.
The rear of the brooch is stamped twice 9ct. Measures 50mm wide x 9mm high & weighs approx 5 grams. The pin is not gold but base metal. Comes in minty display box, unsure if original.