Base Metal – 925 Sterling Silver. Metal Plating – Platinum. Type of Stone – Cubic Zirconia, Syn Emerald. Color – Green, White, Blue. Cut – Oval, Tapered Baguette, 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. 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. Failure to do so will render the product non-refundable and non-payable.