Aquamarine gemstone belong to the beryl group and the gemstones in this group always have hexagonal crystal system, The crystals will be long and will have prismatic habbits in beryl group.The stones found in this group may be in blue, yellow, green, pink, and colourless colours.The stone in picture is 33 carats aquamarine cut in namak mandi bazzar which is in the city peshawer of Pakistan know for its gemstones business from many years.The best quality aquamarine is found in Brazil, Afghanistan and Pakistan Madagascar is famious for their dark blue varity.