Aquamarine belongs to the family of beryl.
The most coveted aquamarine today is the sky blue and dark blue.
Aquamarine may vary in color depending from which direction you look at it.
It is customary to provide aquamarine with facets at the table to highlight the colors.
The best aquamarines are found in Brazil.
Other locations are India, Nigeria, Madagascar, Afghanistan and the Ural Mountains.
Crystal Structure: Hexagonal
Composition: Aluminum beryllium silicate
Refractive index: 1.57 to 1.58