New Estrella & Luna Raw Aquamarine Gemstone Earrings. Sterling Silver or 14k Gold plated Hypoallergenic posts. Handmade in the USA. March Birthstone Aquamarine evokes the purity of crystalline waters and the exhilaration and relaxation of the sea. It is calming, soothing, and cleansing, and inspires truth, trust, and letting go. In ancient lore, Aquamarine was believed to be the treasure of mermaids and was used by sailors as a talisman of good luck, fearlessness, and protection. It was also considered a stone of eternal youth and happiness. Today it protects all who travel by, over, or near water, and opens the channels of clear and heartfelt communication.