Our hoops are made of gold-plated brass and one-of-a-kind Amethyst gemstones. Amethysts are reported to open a person's third eye, which is considered to be a source of power and wisdom and placed in your home it will absorb negative energy and create an air of tranquility in the space. Every piece is unique . They are made by hand in Germany . They come in a beautiful Smilla Brav jewellery box. Due to the unique nature of the stones, every piece is different and the sizes may vary.