Genuine amethyst & diamond halo earrings. There are 2 round natural amethysts that are 5mm in size and 16 round diamonds set in the earrings that are 0.20ct tw, SI1-2 in clarity and G-H in color. Earring dimensions are 8x8 mm in size and available in white, yellow, and rose gold; as well as platinum. Amethyst is the birthstone of February. Amethyst encourages the wearer humility and wisdom. It was also believed those wearing amethyst would keep their mind clear.