What Is A Star Sapphire Stone

Star sapphire value see our article called phenomenal gems to read more about the grading and valuation of stones with asterism.

What is a star sapphire stone.

The star sapphire gemstone is one of the most popular gemstones in the world and much sought after by collectors and jewelry lovers. Sapphires are one of the few gemstones that produce a star shape of four to six light reflecting rays across the center of a cut stone. Fine star sapphires must have enough silk for a bright well defined star without compromising the stone s transparency. Just like any kind of gem the quality of a star sapphire varies depending upon a number of factors.

With its perfect color cut and luminous star the lab made lindy or linde star sapphire is just too good to be natural. Sapphire is one of the most popular gemstones and is used extensively in jewelry. When viewing star sapphire a six rayed star will appear to float across the surface of the stone. The ideal star sapphire would be entirely transparent but the rutile silk that causes the star phenomenon ensures that every star sapphire is to some degree included.

Star sapphires usually have six ray stars but twelve ray stars are also known. The effect is best viewed under a direct light source and while tilting and rotating the stone from different angles. Parti sapphires show two or more colors. Blue star sapphire ceylon good star si vvs type ii 1 000 to 3 000 per carat.

The international gem society igs has a list of businesses offering gemstone appraisal services. Very typical of the star sapphire is the optical effect of asterism. The star of bombay is a stunning oval star sapphire 182 carats in size. This effect displays a thin band of light down the centre of the stone and is known as chatoyancy.

Works as a relaxing agent during times of extreme physical exertion. Fine colored sapphire with a deep blue color and excellent transparency can reach several thousand dollars a carat the blue variety is most often used in jewelry but the yellow pink and orange fancies have recently become very popular. Star sapphire is rare variety of sapphire that exhibits a rare asterism under specific lighting. Together with the diamond ruby and emerald it is one of the most popular stones in the world.