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 it measures 45mm in diameter and our maker's 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, Aqua Chalcedony, Lapis Lazuli, White moonstone, Rainbow Moonstone, Garnet, Amber, Turquoise, Amethyst, Light Green Chalcedony, Blue Opal lab. grown and Peridot Quartz lab. grown. 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.