9k gold signet ring set with natural black onyx stone Product description Metal - 9k gold weight-8grams Gemstones Natural onyx Customization Available also in rose gold white gold and platinum I am happy to quote you the price. I will love to create your custom ring with the materials to suit your style and budget: Diamond, Ruby, Emerald, Blue sapphire, Amethyst, Citrine, Black Diamond, Red Garnet, Peridot, Pink sapphire, yellow sapphire, blue topaz, etc. I am happy to quote you the price.