Estro jewellery is handmade in bronze or ormolu using the lost wax casting technique. The pieces are hand painted with epoxy resins and plated in 24K Gold or Silver (925) and are Nickel free. Some pieces are decorated with natural materials, such as shells, wood, freshwater pearls and semi-precious stones. Each one is then embellished by the addition of tiny glass beads that make the jewels shimmer. All Estro jewels come with a certificate which guarantees the uniqueness and quality of the product.