Brooches by John & Dawn Field This brooch features a repetitive, traditional Japanese fan pattern, which has been embossed into the sterling silver by hand, to create a beautiful surface pattern. It also features an 8mm light blue chalcedony stone. The brooch is slightly domed in shape and it measures 45mm in diameter and our makers mark 'J D F' and a '925' sterling silver mark are stamped on the back.This brooch is available with a choice of gemstones, which are, Blue Chalcedony, White moonstone, Garnet, Amber, Turquoise, Amethyst, Light Green Chalcedony. Please choose from the 'Finish' drop-down menu. Features Primary Material : Sterling silver Other Materials : Blue chalcedony Pin Type : pin Dimensions (mm) : 45 One of a Kind : No Metal : Sterling silver Hallmarked : No Cleaning InstructionsThis brooch has been finished with a clear, protective, anti-tarnish coating.