Aquamarine Gemstone Aquamarine Stone Color Chart

Lower quality aquamarine gemstones are heated to 400 450 degree c to change the color to desired permanent aquamarine blue.

Aquamarine gemstone aquamarine stone color chart.

Aquamarine grading chart august 2020. Aquamarine grading chart aquamarine colour aquamarine stone alphabet crystal system color scale family tattoos blue zircon birthstone jewelry gems and minerals. It is known to be large in size well formed making it particularly valuable. What is the best color for aquamarine gemstones.

It is a gemstone that has a long history and it has been used as a special amulet from ancient times. Even though some buyers may prefer aquamarine gems that have a light green shimmer in them the most valuable stone is the pure clear blue aquamarine gemstone. The most famous aqua blue gemstone is aquamarine. In general the purer and more intense the blue color the more valuable the stone.

However care must be taken not to overheat the gemstone as it may become colorless. It can be blue very slightly greenish blue greenish blue very strongly greenish blue or green blue. Color aquamarine s color range is very narrow. As with most gemstones the 4c s of cut color carat and clarity all come into play when pricing this gemstone.

It has all the elements a beautiful color high hardness and high transparency. Aquamarine gemstone is the green blue to blue variety of the mineral beryl. The gem s most valuable color is a dark blue to slightly greenish blue with moderately strong intensity. Very large specimens exist which means that aquamarine s value doesn t increase incrementally at higher carat weights.

The santa maria aquamarine is a uniquely saturated blue gemstone originally mined in santa maria de itabira in brazil. It is famous as a gemstone that can improve the luck flow. Its price per carat remains relatively constant. Aquamarine is a green blue variety of the mineral beryl named after its characteristic color ranging from light blue to cyan and to bluish green.

A very important part of the value of color in aquamarine as it is with most gemstones is the evenness of the color a consistent color throughout the crystal with no visible color zoning. Smaller sized aquamarines less than 5mm aquamarines typically have a lighter shade as their size limits their ability to showcase a deep blue color. The value of aquamarine gemstones is very much determined by their aesthetics. Color is probably one of the more important determinants of aquamarine value.