Vintage sterling silver rectangle signet ring aqua teal blue stone

Vintage sterling silver rectangle signet ring. Aqua / teal blue stone. Geometric design. Comes with a gift / storage pouch. Solid heavyweight 925 sterling silver. (Stamped Sterling Mexico) In great condition- minor scratches and wear as seen in photos. Size US 8.5 💫 # chunky, big, large, square, unisex, heavy, boho, minimalist, simple, handmade, rustic, letter K