Aquamarine Color VariationsAquamarine exists in many shades of blue, from pale versions to the color of the sky, and some stones are tinged with green -- it owes its color to the presence of iron. Deeper colored aquamarines have the highest value.
Aquamarine is a durable gemstone, and is rated at 7.5 on the Mohs scale (compared to diamond at 10).
Sources of AquamarineMuch of the world's supply of aquamarine comes from Brazil, with one particularly vivid blue type called Santa Maria because it originates from the country's Santa Maria de Itabira mine. Aquamarines are also found in Africa, the Middle East, Mexico and even the United States.
Aquamarine ImpostersLike the Santa Maria, other aquamarines are often named for the places where they were mined, but beware of the term Brazilian Aquamarine, because some jewelry sold with that name is actually made with blue topaz. A gemstone called Siam Aquamarine is more than likely a blue zircon that's been heat-treated to intensify its color.
If you are unsure if an aquamarine is genuine, ask for clarification.
Aquamarines in History
Aquamarine has long been considered a lucky stone, especially by sailors, who carried it to keep them safe at sea. It is said to bring peace and calming to its owner, relieving stress and enhancing intuition. Crystal healers use aquamarine to harmonize diseased areas of the body.