The stars which seem to appear closer to the top of the gemstone will have four points, but it is very rare that you come across one that has six points, and this is considered a truly valuable specimen. The depth and clarity of the gemstone will also affect this effect and also affects the price. Then position of the star effect, with respect to the positioning of the center of the gemstone will determine the value of the stone after cutting. This cannot be seen through the naked eye until it is cut.
Introduction The star sapphire gemstone is a variety of sapphire which has been found to have a characteristic only known as asterism this is when the sapphire seems to produce a star of light that comes from the center of the stone If a skilled cutter takes a good look at the rough, he should be able to tell whether this will produce a start sapphire or not.
Star Sapphire Gemstones - Variety of sapphire
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