March babies have a beautiful pure and and even blue or blue-green color. Its the Latin name of "seawater". This March birthstone was also thought to bring happiness in marriage. Brazil has been an important source of aquamarine for the past two centuries. With a hardness of 7.5–8 on the Mohs scale, this March birthstone is durable enough for everyday wear. Caring for the gem is easy. Use warm water, mild dish soap and a toothbrush to scrub behind the birthstone where dirt can collect. Ultrasonic cleaners and steam cleaning are usually safe options as long as there are no fractures or liquid inclusions in the gem.