William III Badge - The designer and creator of the piece is publicly unknown. It has been called a brooch, a badge and a pendant. These were often popular diplomatic gifts. This one has a likeness of King William III in it. It is uncertain who was the original owner, but it was acquired by Queen Mary in 1916. The piece consists of concentric circles of rose-cut rock crystals in petal-shaped settings around a larger central stone surmounted by a crown set with rock crystals. The portrait miniature is surrounded by a frame of petal-shaped plaques of white enamel with black scrollwork and pink flowers. The reverse of the crown is similarly enameled. Currently held by the Royal Collection Trust.