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GEMSTONE SHAPES AND FACETING
The shape of a gemstone is determined by its natural crystal structure and the conditions under which the crystal developed. A gem cutter uses the natural crystal structure and inner beauty to guide his tools as they craft natural gemstones into precise shapes. If faceted, these shapes include a number of flat, symmetrical planes, called "facets", which reflect light and add sparkle and brilliance to the finished stone. Each gem material has a known refractive index which allows a gem cutter to determine how light rays will bend as they pass through the stone. Using this information the gem cutter can precisely shape the gemstone to best enhance its natural beauty.
Viewing a well shaped multi-faceted stone from above will reveal the entire surface of the facets to be bright and smooth. This brightness results from light rays being reflected directly from the top surface, as well being reflected within the gemstone and back to your eye. A well cut gemstone will reflect back the greatest amount of light back to the viewer, minimizing any "window" effect. If a gemstone is not as well shaped it will be possible to look down on the top surface and see through to the bottom of the stone, the "cuticle". This transparent effect is called a "window." Windows can detract from the brilliance and color of a stone, since light is allowed to pass directly through the gemstone without reflecting back to the eye. Gemstones can also be smoothly polished or "cabed". For example, opals are suited to a smooth, rounded surface, and are often found with pleasing shapes which naturally highlight their internal flashes and sparkles. "Star" or "cat's eye" gemstone material are also frequently found as cabochons. Thank you for shopping with us!
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COMMON GEMSTONE SHAPES ___________________
Click on the photos to view our selection
ROUND
OVAL
EMERALD
HEART
MARQUISE
PEAR
SQUARE
TRILLION
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