Gemstones Information
Our Featured Gemological WriterStarting The Hobby Of Loose Gemstone Collecting
By Lee MacRae
Gemology is a term referring to the profession, science, and even art of evaluating and identifying gemstones from
natural diamonds to
loose gemstones. Many people take up gemology as a hobby. They become very interested in starting to collect items like
loose gemstone or
natural diamonds. A number of these hobbyists start to travel to various areas nearby to hunt for raw or rough gemstones. Some of them will even tumble or finish off the gemstones themselves. If you have an interest in this hobby read along as we reveal the various aspects of gemstone collecting.
To begin with you'll need the knowledge on the various gemstones available. This will help you to know what you're buying and prevent you from wasting your money. This will help you make informed decisions.
Color is a very important part in evaluating a gemstone. The closer a color is to its purer spectral value the more valuable it is. Traditionally, these specter colors include red, orange, yellow, green, blue, and violet. Colors that tend to be paler or darker than the pure color tend to be less valued.
Gemstone cut is very important and factors into appraisal of diamonds but you're gemstones as well. A good cut highlights the gemstone's color, lessen any inclusions and exhibits good overall symmetry and proportion. One way to determine the precision in the cut is to look at how well and consistent it reflects light throughout the surface of the stone. If the gemstone is cut to shallow much of the light will refract out of the gem rather than reflecting inside the stone. The gem appears washed out.
Gemstone clarity is an important consideration. Gemstone clarity relates to a stones relative freedom from inclusions or blemishes. A perfect gemstone is obviously worth more. To see flaws beyond with the eye can see requires a gemstone loupe or gemstone microscope. Many hobbyists will get an inexpensive 10X gemstone or jewelers loup for viewing stamps, coins, beads as well as gems.
Next comes size and weight. Other than the corals and pearls gemstones are valued by the unit called the carat. One carat equals a 0.2 grams. Be aware however, that size and weight and gemstones are not the same. Density or specific gravity can vary in gemstones. If you have a diamond that weighs 1.00 carats, you will find a Sapphire or ruby of the same size would weigh 1.20 carats.
Though you may find gemstones used a lot in jewelry, they are a great hobby and pastime as well. In fact, there are many attractive and interesting gemstones that are simply too big and fragile for use in jewelry. Take each loose gemstone and think of it as a piece of art, a miniature sculpture to be treasured for its beautiful colors and the finish you apply to it. And unlike some hobbies that require you to pay for your specimens you can find your raw materials through field trips In the US in Minnesota you can hunt for Agate and Thomsonite. And if you travel to Canada you will find nephrite jade in Cry Lake, British Columbia or sodalite and rose quartz near Bancroft, Ontario along with amethyst from Nova Scotia. Think of gemstone collecting for the great hobby it is.
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Sometimes, Fancy Jasper is called bloodstone. However these are very different
stones as Fancy Jasper comes in many colors. Generally, the polish will be
removed if you get this type of stone wet. As with other jewelry, avoid
scratches, sharp blows and harsh chemicals.
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Alexandrite is mined around the world in Brazil, Madagascar, Myanmar, Russia,
Sri Lanka and Zimbabwe. Alexandrite is considered a good omen in Russia.
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Long before diamonds were found worthy of jewelry, people revered sapphires, rubies, emeralds, and all manner of colored stones. In addition, almost all colored gemstones were believed to have special powers or cure specific illnesses. There was a time when a collection of different gemstones was the equivalent of a medicine cabinet!
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Gemstones Scene Information
So You Want To Collect Gemstones
By Lee MacRae
The term gemology refers to the science, art and profession of identifying and evaluating gemstones from
loose gemstones to
natural diamonds. A number of people taken up this profession as a passionate hobby. They become interested in collecting
loose gemstones or
loose diamonds. A number of these hobbyists start to visit different areas nearby or in some cases other countries to look for rough gemstones. Some of them will even tumble or finish off the gemstones themselves. If this sounds like a hobby you would like to get involved in follow along as we discuss the different aspects of this hobby.
The first thing you need to do is to visit the library and get some books. You want to learn as much as you possibly can about your new hobby. The more you understand about gemstones the wiser will be your purchases. You need to be as informed as possible.
One of the first things you look at Is gemstone color. Top grade gemstones exhibit colors similar to the exact spectral color of orange, green, yellow, Violet or blue. Gemstone colors that are somewhat muted or too dark can lower the value quite easily.
The cut of your gemstone is one of the most important traits in evaluating gemstones. The stone has to be cut correctly to reflect light properly. A gemstone with an improper cut can't reflect the light consistently over its surface. Color tone, saturation, and hue will never be consistent.
Gemstone clarity is our next factor. When we talk of clarity it relates to the amount of inclusions (trace elements or large particles of other elements or minerals) that a gem has. A gemstones that is normally found to be clean is more valuable. To see flaws beyond with the eye can see requires a 10X gemstone clarity magnifier or gem microscope. Most hobbyists will get a jewelers diamond gemstone loupe 10X for viewing their coins, beads, stamps or in our case gemstones.
You will often find that gemstones are often listed according to their size criteria since it is more uniform than carat weight. But two different gemstones may have the same size but differ in carat weights and as a result different pricing structures. This is due to the difference in relative density or specific gravity depending upon the materials chemical composition and crystalline structure. Normally a one carat brilliant round diamond of typical proportions will be approximately 6.5 mm in diameter. A ruby that is the same size will weigh in at 1.55 carats instead.
Taking up the hobby of gemstones can be very enjoyable and rewarding in the long run. You don't need to spend a lot of money and yet you can build a very exquisite collection. Many people love to set aside vacation or weekend time to go looking for gemstones. Take the example of the US. In New Jersey you can find Smoky Quartz, Agate, Pearl and Prehnite. Or ou can take a longer vacation and find opal at Lightning Ridge in NSW, Austalia, topaz in Killiecrankie, Tasmania or hunt the peridot fields in Mortlake in Victoria, Australia.
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The Logan sapphire is named after Mrs. John Logan who donated the gemstone to
the Smithsonian Institution in 1960. The Logan sapphire is a flawless specimen,
possesses a rich blue color and is the second largest (blue) sapphire known,
weighing 423 carats (84.6 g). The cushion-cut stone is one of the world's most
famous sapphires and is set in a brooch surrounded by 20 round brilliant cut
diamonds weighing in total 16 carats (3.2 g). The Logan sapphire originates from
Sri Lanka, a famous location for sapphires.
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Good Grade diamonds: This grade will be generally be a bit darker or lacking in
scintillation. The stone above is dark around its girdle. A stone can also be
downgraded by its pattern, or its weight ratio. I.E. if it weighs more than an
average gem of this diameter, it will be downgraded one step.
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The MidEast Watch and Jewellery show is celebrating its silver ...AME Info, United Arab Emirates - Oct 8, 2008The show will display loose pearls, diamonds, precious stones, gold and diamond jewellery, diamond and pearl sets, crystals, watches, jewellery displays, ... |
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Labels: loose semi precious gemstones