The ancient Greeks and Romans relied on aquamarine to protect their sailors. These ancient mariners brought the sea-green crystals on board to ensure safe passage to and from their destinations.
In particular, they believed aquamarine would protect them during storms. At night, these same sailors slept with the crystals under their pillows, ensuring a sound and restful sleep.Worn as a talisman, around the neck or on the finger, the aqua stones might also calm the waves.
Ancient Greek seafarers sometimes tossed their aquamarines into the surging waters as an offering to Poseidon. Placing their hope in the sea God's favor, they held fast awaiting the calming of the seas.
Celebrated as the mermaid's prized possession, sailors believed wearing the stone not only provided them protection from death at sea, but also curbed the onset of seasickness.