Black Onyx Signet Ring
Black onyx is an opaque gem belonging to the quartz family of gemstones that also includes amethyst and citrine. It has been used since antiquity, both for jewellery and as an ornamental gem material for carvings and statues. Many cultures have put faith in its protective properties and have worn it into battle or to shield them from the evil eye. Black gems have fallen in and out of fashion over the years with high points including the later half of the 19th Century when Queen Victoria popularised the wearing of black jewellery for mourning as well as the 1920s and 30s when it was in vogue once more with the monochromatic look popular during the Art Deco period. It is found in many locations including but not limited to Argentina, Australia, Brazil and Germany.