Aquamarine is just as the name suggests. It is cool and composed like the seawater. It is a great gift for married couples as it is said to have calm and soothing effect on the lives of the people wearing it. These gems are available in many colors from pale pastels to greenish blue. However the purest and the most expensive form are the darker shades. The color gets darker with the increase in size. It is associated with the month of March and is said to bring health, hope and fidelity to the life of the wearer. Most of the mining for Aquamarine is done in Brazil; however you will also find the deposits in Pakistan, Nigeria, Kenya and other parts of the world as well.