Aquamarine Gemstone Aquamarine Stone Color Chart

The high quality ones are valuable and very expensive.

Aquamarine gemstone aquamarine stone color chart.

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. Aquamarine grading chart august 2020. The gem s most valuable color is a dark blue to slightly greenish blue with moderately strong intensity. Color is probably one of the more important determinants of aquamarine value.

Aquamarine named for the latin phrase water of the sea is the blue to blue green variety beryl beryl also contains other gem varieties including emerald and some lesser known varieties such as morganite and heliodor aquamarine ranges in color from a faint light blue to blue and bluish green with lighter colored stones being the more common type. The most famous aqua blue gemstone is aquamarine. 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. Aquamarine gemstone is the green blue to blue variety of the mineral beryl.

It is a gemstone that has a long history and it has been used as a special amulet from ancient times. The santa maria aquamarine is a uniquely saturated blue gemstone originally mined in santa maria de itabira in brazil. It is known to be large in size well formed making it particularly valuable. Very large specimens exist which means that aquamarine s value doesn t increase incrementally at higher carat weights.

As with most gemstones the 4c s of cut color carat and clarity all come into play when pricing this gemstone. The value of aquamarine gemstones is very much determined by their aesthetics. However care must be taken not to overheat the gemstone as it may become colorless. Color can be enhanced by radiation but these changes do not last for instance the deep blue color of maxixe a rare variety of deep blue aquamarine is believed to be derived from.

Lower quality aquamarine gemstones are heated to 400 450 degree c to change the color to desired permanent aquamarine blue. Color aquamarine s color range is very narrow. 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. It has all the elements a beautiful color high hardness and high transparency.

In general the purer and more intense the blue color the more valuable the stone. It is famous as a gemstone that can improve the luck flow. Its price per carat remains relatively constant. Smaller sized aquamarines less than 5mm aquamarines typically have a lighter shade as their size limits their ability to showcase a deep blue color.