Natural Gemstone Adjustable Rings, with Platinum Brass Findings, Long-Lasting Plated, Jewely for Women, Moon with Round, Size: about 18mm inner diameter.Natural Blue Lace Agate, Natural Sunstone, Natural Black Agate, Natural Labradorite, Natural Lapis Lazuli, Natural Rose Quartz, Natural Malachite, Natural Apatite, Natural Amethyst, Natural Amazonite