Aquamarine is most often light in tone and ranges from greenish blue to blue-green. The name aquamarine is derived from two Latin word, aqua meaning “water” and marina meaning “of the sea.” The color is usually more intense in larger stones and darker blue stones are very valuable. The Greeks and the Romans knew the aquamarine as the sailor’s gem, ensuring the safe and prosperous passage across stormy seas. Aquamarine is the birthstone for March and used to celebrate 19th wedding anniversaries. On Mohs scale, aquamarine has a hardness of 7.5-8. This gemstone is mined mainly in Brazil, but also is found in Nigeria, Madagascar, Zambia, Pakistan, and Mozambique.