Anello Reversibile Zodiaco Cancro Onice Nero in Argento Placcato Oro 18 CaratiInstantly add a touch of mystic glamour to your look with this stunning flip ring which features a captivating black onyx gemstone. With a reversible centre, this ring has endless possibilities. On one side the word Cancer' has been carefully inscribed. Simply flip the ring to reveal a crab motif intricately crafted in gold plated silver. Gemstone Information Throughout history, onyx gemstones were used in many jewellery pieces, especially cameos.