This product is crafted from 925 sterling silver, lab-grown diamonds, and opal. It features a high-polish finish and is nickel-free, lead-free, hypoallergenic, and cadmium-free, making it ideal for sensitive skin. The jewelry will not cause skin discoloration. Lab-grown diamonds, identical to natural diamonds in composition and structure, are ethically created in labs. While IGI certification is available for diamonds over 0.5 carats, this piece does not include one. Each diamond undergoes rigorous quality testing. Designed for versatility, it suits engagements, weddings, anniversaries, and other special occasions. The jewelry arrives in elegant packaging, perfect for gifting. Registered and certified by Amazon, it undergoes strict quality checks. For any concerns, feel free to reach out.