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Gemological Article Of The Month

How To Start Loose Gemstone Collecting

By Lee MacRae

Gemology is the science, art and profession of identifying and evaluating rocks known as natural diamonds or loose gemstones. A number of people taken up this profession as a passionate hobby. They become interested in collecting and evaluating loose diamonds or loose gemstones. Some people even begin to travel to different areas to hunt for raw or rough gemstones. Some hobbyists will learn to cut or tumble the gemstones they find. If this hobby interest you read along as we discuss the in and outs of gemstone collecting.

The first thing you need to do is to get yourself some books on gemstones. You want to understand everything there is to know about precious and semiprecious gemstones. The more you learn about each kind of gemstone the wiser will be your purchases. You'll know exactly what to look for in a quality stone.

One of the first things you look at Is gemstone color. Top grade gemstones have pure colors there as close as possible in pureness to the spectral colors 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 when buying a gemstone. The gemstone must be cut in a way that reflects light back to the viewer. A poor cut will not reflect light consistently over its entire surface. Color saturation, color hue and color tone will always appear inconsistent

A third consideration is the clarity of the gemstone. This means the purity of the stone or the lack of internal inclusions, particles or spots within the crystal. Needless to say, stones with no flaws are hard to find and make your stones very valuable.

Gemstones are often listed according to their size criteria because it is more uniform than carat weight. But different gemstones may have the same size but different carat weights and consequently, different in prices as well. This is due to the difference in relative density or specific gravity and depends on the materials chemical composition and crystal structure type Normally a one carat brilliant 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 in at 1.55 carats.

Collecting gemstones can create an enjoyable hobby and pastime. And there are so many different types in precious and semi precious stones that you can collect. You can start collecting gemstones like Kunzite, Pyrite or Variscite for instance. The varieties are nearly endless. And if money is tight you can go hunting for raw gemstones. For example in Missouri you can hunt for Pearl, Fluorite, Pyrite and Calcite.

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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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The Crown of Andes emerald was made in an ancient Inca city in 1590, during the
Plague, which missed the city because of its isolation. It was made to thank the
Blessed Mother for saving them from the Plague, and it contains 453 emeralds
from Inca treasures. The Guinness Emerald Crystal is 1759 carats, one of the
largest in the world. It is in the Banco Nazionale de la Republica in Bogot,
Columbia.
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