AQUAMARINE - The Gem of the Sea
Aquamarine, the "gem of the sea", derives its name from the ancient term for "sea water". The reference is obvious: aqua sparkles like the sea and its color is pale to medium blue, sometimes trending to a light green color. Aquamarine is the birthstone for March. Aquamarine is always a pastel blue to blue green, but the darker the color, the more valued it is. Many folks prefer a pure blue shade, with no green in it, however the greenish colors are also very beautiful.
It is a relatively hard gemstone, 8 on the Mohs scale and possesses moderate brilliance. Because the color is generally pale, aquamarine should have a good clarity. If you are looking for a big, durable gemstone, aqua is readily available in larger sizes and is truly dramatic when cut in rectangular or oval shapes. These stones are also often cut in emerald or step cuts. More saturated colors are unusual in small sizes: usually it takes a stone of some size for the color to appear as a darker shade. Aquamarine is a durable and lively gemstone that is appropriate for all jewelry uses. Its pale fire is flattering to most skin tones.
The Worldwide Sources of Aquamarine
Aquamarine can occur in very large clean hexagonal crystals, and are even found as bi-colors with other beryl minerals such as morganite. The coloring element to produce the beautiful blue green color is iron, which is substituted for aluminum in the crystal structure. The gem forms special in geological formations known as pegmatites. Most of the best and largest crystals form in open vugs, also known as pockets, associated with crystals of quartz and feldspar.
Aquamarine is found in Brazil, Zambia, Mozambique, Angola, Nigeria, Afghanistan and other countries, but Brazil is overwhelmingly the major source.. The principal producer of aquamarine has been Brazil but in more recent times Zambia, Mozambique and Nigeria have been producing very fine quality stones. Some very dark blue aquamarine is also being mined in India. The largest high quality gem crystal ever discovered, mined in the early 1900's, was a 200-kilogram crystal found in Brazil. It was so clean that one could read newsprint through it! Some Aquamarine continues to be produced in smaller quantities, but it has been years since large quantities have come to the market.
Selecting an Aquamarine Gem
gemstone has been popular for centuries, but received new vigor during the early 1970's.
As a result, the price has remained stable or has increased even during recessionary
times. Twenty years ago the demand for aqua was small, and the material was quite
inexpensive. Today the finest gems may wholesale for well over $1,000 per carat. Fine quality aquamarine in sizes over 10 carats is not
abundant. Commercial stones tend to be pale blue or pale blue-green, while
investment-grade material is deeper blue, and of a medium to dark tone. The pervasive
demand for aquamarine in the jewelry marketplace, however, indicates that all grades can
ultimately be used for adornment and provides an excellent secondary market potential.
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