Gemstones Info
Gemological Information ArticleSo You Want To Collect Loose Gemstones
By Lee MacRae
Why collect
loose gemstones you ask? Well for one thing they've been sought for their beauty for many centuries. And like their more familiar cousin,
natural diamonds, they can appreciate in value over time. Many in this hobby love to collect and show case each and every one of the 150 varieties available. Read long as we examine the
loose gemstones hobby.
To start off right you'll need the knowledge on the wide variety of stones available. This knowledge will help you to know what you're buying so you buy the right items. A knowledgeable buyer is a wise one.
First, color is a major part in evaluating a gemstone. The closer the color of the gemstone is to its pure spectral color the more valuable the stone becomes. Traditional spectral colors include violent, blue, green,, orange and red. Colors that tend to be darker or palerthan a pure color are considered a lower value.
Gemstone cut is one of the most important traits in determining gemstone value. The cut has to be done with precision to reflect the light properly. A stone that has a poor cut will not reflect light in a consistent way. The hue, tone and color saturation will always look inconsistent.
Next to look at is the aspect of gemstone clarity. Clarity is the term that refers to the internal conclusions or flaws of the gemstone. Any large flaws you can usually see with your naked eye with the others needing a 10X magnification.
Gemstones are often categorized according to their size aspect because it is more uniform than carat weight. But different gemstones may be of the same size but differ in carat weights and as a result different prices as well. This is due to the difference regarding relative density or specific gravity and depends on the materials chemical composition and characteristic crystalline structure. For example, a one carat round diamond with standard proportions will be approximately 6.5 mm in diameter. A comparable round brilliant ruby of the same size and proportions will weigh approximately 1.55 carats.
Collecting gemstones can be very rewarding hobby. And there is a wide range and variety in precious and semi precious stones that you can collect. You can collect gemstones like Obsidian, Topaz or Zeolite (Thomsonite) for instance. The varieties are nearly endless. And if you like a hands on hobby you can go gemstone hunting and find the raw materials instead of buying them. For example in New York you can find Beryl, Brown Tourmaline, Rose Quartz as well as Fresh Water Pearl.
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Gemstones For Sale
Tips On loose diamonds to buy
The Patricia Emerald Crystal was discovered in the Columbian Andes' Chivor Mine
in 1920 and is named after the mine owner's daughter. Not only is it one of the
largest gem-quality emeralds in the world, but it is also dihexagonal, or 12-
sided, and measures 2�" � 1". The stone has flaws, but this is common in
emeralds -- the vast majority of faceted emerald gems have flaws. The stone
resides in the New York Museum of Natural History.
Buy square princess natural diamonds today!
Bloodstone is found in: Australia, Brazil, China, India, and the USA (Wyoming).
Bloodstone is the March Traditional Birthstone. Though not meant to replace
traditional medical treatment, Bloodstone is used to help one become more
knowledgeable in the ways of the world.
Buy pear blue loose gemstones today!
Brilliance is the amount of light reflected from the crown facets of a facet-cut gemstone. It is a combination of the light reflected back out of the stone and the light reflected directly from the facet surfaces. Two factors critical in achieving maximum brilliance are the angle of the pavilion facets and the degree of polish on the facet surface (lustre). The table facet of a diamonds is cut to various sizes depending on the desire for more brilliance and less fire(dispersion), where a larger table is used. Or more fire and less brillinace, where a smaller table is used. A good balance is obtained by cutting to ideal proportions. The pavilion facet angles are not only critical in determining the amount of brilliance, shallow angles may result in creating a 'window' in the stone; an area of the stone that can be seen through. Deep angles result in dark areas in the stone, termed extinction. Brilliance is lost in both situations.
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