Brooches by Yvonne Gilhooly Nissyoku Brooch.Seven brilliant cut diamonds punctuate the rollprinted starry interior of this oxidised sterling silver brooch. Features Primary Material : oxidised rollprinted silver Other Materials : diamonds Pin Type : double pin Dimensions (mm) : 70mm x 70mm x 12mm One of a Kind : Yes Metal : sterling silver Gems : diamonds Hallmarked : Yes Cleaning InstructionsDo not dip or abrade surface.