If you like green and you’re on a budget, green tourmaline or verdelite is the gem for you.Other alexandrites of notable size include in the following:“Emerald by day, ruby by night,” alexandrite is well known for displaying one of the most remarkable color changes in the gem world — green in sunlight and red in incandescent light. NOTE: all prices are per carat, so you need to multiply the carat price to the carat weight of the gem. Alexandrite is a very rare variety of chrysoberyl, an aluminate of beryllium, one of the hardest gemstones in the world (with a hardness on the Mohs scale of 8.5). Tourmalines make very popular jewelry stones and…Looking for a tourmaline jewelry stone? You can see with the naked eye how, after being emerald green in daylight, alexandrite turns crimson red in artificial light.
Stones over five carats are very rare, especially with good color change.Zimbabwean gems show a fine, emerald-green color in sunlight but are usually tiny. Read about quality factors for this gem in our tourmaline buying…
Alexandrite color changes.
0.35 cts, 5.1 x 4.2 mm, Russia. This effect can help gemologists identify…From the seemingly common to the utterly obscure, you wouldn’t guess these ten gemstones are rarer than a diamond! Synthetic Alexndrite sells to the trade from one company at $167 per carat, with a retail of $500 per carat. Hydrothermally grown alexandrites are some of the more valuable synthetic gems. Learn about the many different ways gem color and clarity are…Tourmaline is a name applied to a family of related minerals with widely varying properties. Brazilian Alexandrite 9.99 carats sold by Christie’s Auction House One of the most expensive Alexandrites from Sri Lanka was sold for at the Magnificent Jewels New York Auction for $557,000.00. For more detailed value information, see our alexandrite buying guide .
It is also thought that alexandrite can help you adapt to a new environment, understand unusual ways of life and find a common language with whoever you like.
In 1987, alexandrite was discovered in Brazil and later in Madagascar, Myanmar, Sri Lanka, and Zimbabwe. This variety of gem-quality chrysoberyl makes an excellent jewelry stone (if you can acquire one).Brazilian alexandrites tend to have pale colors, pale blue-green to pale mauve.
But like all gem materials, low-quality (i.e., non-gem quality) pieces may be available for a few dollars per carat. However, other types of lights can produce other colors, as shown below.The main source of large, natural alexandrite gems today is actually antique jewelry.A gemstone’s optic sign may be listed as either + or -.
The color change in Zimbabwean gems is among the best known, but large, clean stones are virtually unobtainable from the rough from this locality.Join our weekly newsletter & get a free copy of the Gem ID Checklist!From the seemingly common to the utterly obscure, you wouldn’t guess these ten gemstones are rarer than a diamond!
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