Art Deco Inspired Chalcedony & Marcasite Stud EarringsAbout This Item A pair of stunning Art Deco inspired stud earrings with octagon cut dyed green chalcedony gemstones surrounded with sparkling marcasite and black enamel. These earrings feature a post and butterfly clip for pierced ears. Gemstone Information Chalcedony is suggested to be one of the earliest materials that man used, noted as being used in the city walls of New Jerusalem. Jewellery Collection Gemondo's Art Deco Inspired Collection