Ct.,Oval,$13,Natural,Clothing, Shoes Jewelry , Shoe, Jewelry Watch Accessorie , Jewelry Accessories,Sapphire,gemhub,courseconductor.com,2.70,Rays,Certified,/beneplacito975429.html,Star,Blue,6 gemhub Cheap sale Natural Certified 2.70 Ct. 6 Oval Sapphire Star Rays Blue $13 gemhub Natural Certified 2.70 Ct. 6 Rays Blue Star Sapphire Oval Clothing, Shoes Jewelry Shoe, Jewelry Watch Accessorie Jewelry Accessories Ct.,Oval,$13,Natural,Clothing, Shoes Jewelry , Shoe, Jewelry Watch Accessorie , Jewelry Accessories,Sapphire,gemhub,courseconductor.com,2.70,Rays,Certified,/beneplacito975429.html,Star,Blue,6 $13 gemhub Natural Certified 2.70 Ct. 6 Rays Blue Star Sapphire Oval Clothing, Shoes Jewelry Shoe, Jewelry Watch Accessorie Jewelry Accessories gemhub Cheap sale Natural Certified 2.70 Ct. 6 Oval Sapphire Star Rays Blue

gemhub Cheap sale Natural Certified 2.70 Ct. 6 Oval Sapphire Memphis Mall Star Rays Blue

gemhub Natural Certified 2.70 Ct. 6 Rays Blue Star Sapphire Oval

$13

gemhub Natural Certified 2.70 Ct. 6 Rays Blue Star Sapphire Oval

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Product description

Some rare natural sapphires exhibit a star-like phenomenon known as asterism. These gems contain intersecting needle-like inclusions (often the mineral rutile, a mineral composed primarily of titanium dioxide) that cause the appearance of a six-rayed star when viewed with a single overhead light source. To cause a star, the rutile needles need to form in parallel and tightly packed groups. The reflection off of each group of crystals forms a straight line that appears to float on the surface of the stone. There are always three groups of crystals that intersect at 60-degree angles from each other. The three lines formed connect in the center to form the appearance of a 6 ray star. The presence of a star is one of the more remarkable phenomena encountered in the world of colored gemstones. This optical phenomenon is quite rare, being only found in a tiny percentage of the sapphires mined around the world. Star sapphires can occur in any color, but the most common colors are blue, black, and pink.

gemhub Natural Certified 2.70 Ct. 6 Rays Blue Star Sapphire Oval

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