Natural Santa Maria Aquamarine 3.06 caratA natural aquamarine weighing 3. 06 carats is a stunning gemstone with a captivating blue hue, often associated with tranquility and the calming essence of the ocean. This size of aquamarine can make an elegant centerpiece for a ring or pendant, showcasing its brilliance and clarity. As with any gemstone purchase, its advisable to obtain a certificate of authenticity to verify its natural origin and quality.