To ensure the quality of gemstones, avoid chemicals, such as perfumes or cleaning products, that may damage, fade or stain your gemstones or metal, do not wear gemstones in the shower, while swimming, or during other activities that expose them to water, and do not leave gemstones out in direct sunlight to prevent fading.
To clean gemstones: Use a soft cloth to polish and clean metals and gemstones. Avoid water and harsh chemicals. Do not use materials that may scratch the gemstones. To clean black lava stones: Saturate a soft cloth in a solution of a ¼ cup water and a ¼ cup rubbing alcohol. Cover lava stones with cloth for 3-4 hours, re-saturate cloth as needed. Avoid placing water on metal jewelry to avoid tarnishing or discoloration.