Star Sapphire Gemstones

Sapphire is a precious gemstone a variety of the mineral corundum consisting of aluminum oxide α al 2 o 3 with trace amounts of elements such as iron titanium chromium vanadium or magnesium it is typically blue but natural fancy sapphires also occur in yellow purple orange and green colors.

Star sapphire gemstones. This format is the result of a phenomenon well known as an asterism can be found in several types of gemstone in star sapphires they are due to intersecting needle like impurities. Star sapphire color star sapphires can range in color from blue in various tones to pink orange yellow green lavender gray and black. 1 16 of 852 results for natural star sapphire gemstone price and other details may vary based on size and color. Get it as soon as thu oct 8.

It is semi transparent with a consistent background and a well developed well oriented natural 6 ray star as shown at left under direct sunlight. Star sapphires star sapphires exhibit a special optical phenomenon called asterism. Tiny needles of silk within the sapphire crystal reflect light and form a star sapphire s telltale star. The most common star pattern is a 6 rayed star although star sapphires with 4 rays and 12 rays have been found.

The coloring agents in blue sapphire are iron and titanium and vanadium in violet to purple colored stones. 20 ct 10 pcs natural 6 rays precious star blue sapphire loose gemstones lot oval cabochon blue star sapphire. 3 3 out of 5 stars 34.