Amethyst jewelry is a gemstone that comes in many purple shades, ranging from light purple, violet purple, reddish-purple, and deep purple. Because of the vast range of shades, sometimes it gets confusing to identify whether the real amethyst necklace collection is actually or not. Even the most knowledgeable and experienced person who has been dealing in the sterling silver amethyst pendant for years can get confused about the authenticity of the gemstone.