Sterling silver - Marked 925/Sterling/Ster Marked with the Hallmarks of Nicky Butler, a famous designer. Stones likely moonstone, topaz, amethyst See Photo for condition Sz 11 • We are happy to apply a chemical tarnish remover prior to shipment. To have your piece polished, you must immediately request it after purchase. The polish will significantly shine up the piece. We list items unpolished because some people like the vintage patina! • Quarter sizes are always sized down to the nearest half size.