Women’s vintage rings with ornate rose-cut stones -Men's Cabochon Star Sapphire Ring
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A brilliant star shines brightly at the center of this retro 10.00-carat cabochon star sapphire ring. The rare blue gemstone is among the most unique of the colored gemstones thanks to its trademark six-pointed star. This special feature is the result of an optical phenomenon known as asterism. Perfectly aligned, microscopic needle-like mineral inclusions are found in the stone, and it is these that cause the appearance of a star when viewed under a single, concentrated light source. The most desirable star sapphires boast a high dome such as this example, which amplifies the asterism and size of its star. The central jewel is flanked by two baguette diamonds totaling 0.20 carat.