Yes, they are. We purchase from reputable suppliers that have given us evidence of their practices and materials. It is important to note that while we sell products with genuine, natural gemstones, we also sell some products that include manufactured gemstones. In each product listing, we will give information about materials that are included in that product. For example, a product that includes natural amethyst would be listed as including "natural amethyst" or simply "amethyst." A product that includes a manufactured gemstone will have the words "created," "simulated," or "synthetic" in the description of the stone. Some products include both natural and manufactured stones. All metals used conform to international standards for those metals.