Natural Santa Maria Aquamarine 2.50 carataquamarine A natural aquamarine weighing 2. 50 carats is a beautiful gemstone with a soothing blue color reminiscent of the sea. Aquamarines are known for their clarity, brilliance, and calming energy, making them popular choices for various types of jewelry, including rings, earrings, pendants, and bracelets. When purchasing a natural aquamarine, it's important to ensure that it comes with a certificate of authenticity to guarantee its natural origin