Base Metal – 925 Sterling Silver. Metal Plating – 18k Yellow Gold. Type of Stone – Turquosie. Cut – Round / Brilliant. Certified – Authenticity by Adastra. Ring/Bracelet – All Sizes available. THE HOUSE OF ADASTRA. Custom jewelry that reflects your individuality and style. Collaborated with customers for more than a decade to create custom pieces. Our highly skilled artisans meticulously create your personalized jewelry. Custom jewelry can be ordered in 18K Gold, 14K Gold and/ or natural certified diamonds, lab grown diamonds, moissanite, and natural gemstones. Get in touch to know more. What is AdStar Diamonds? AdStar Diamond Cubic Zirconias (CZ) set themselves apart by undergoing a transformative process that elevates them to a level of durability and brilliance beyond the ordinary. Infused with natural diamond dust, these CZs boast a remarkable longevity, ensuring that each piece becomes a cherished companion for a lifetime. AdStar takes meticulous care in hand-cutting each stone to perfection, creating a brilliance that rivals the finest diamonds in the market. These AAAAA-grade AdStar CZs are equivalent to diamond VVS DEF color. Kindly check with your port before ordering. Feedback and Follow Us. Prompt Assistance: We strive to provide proper solutions and address your queries promptly. Follow us on social media to see our new collections. Vintage jewelry, diamond jewelry, art deco jewelry for women, reproduction jewelry, handmade jewelry.