Blue Star Sapphire Gemsona

This star is a focus point in the gem.

Blue star sapphire gemsona.

The blue color of star sapphire represents the sky. Black and blue star sapphire gemstones are very popular for men s jewelry. Some black star sapphires can be found in large sizes and these are perfect for oversized rings and pendants. 20 ct 10 pcs natural 6 rays precious star blue sapphire loose gemstones lot oval cabochon blue star sapphire.

It is useful when you are worried or think too much about things. The most common star pattern is a 6 rayed star although star sapphires with 4 rays and 12 rays have been found. Add 8 to 10 for rounds and pears. Prices for ovals and cushions.

Typically mid quality untreated blue sapphire will sell for 20 30 more than a treated stone of the same quality. Besides blue sapphire and ruby the corundum family also includes so called fancy sapphires they come in violet green yellow orange pink purple and intermediate hues. Sapphire along with her sister gemstone ruby belongs to the corundum group of gemstones considered one of the hardest minerals on earth. Natural stone beads 8mm phoenix lapis lazuli gemstone round loose beads crystal energy stone healing power for jewelry making diy 1 strand 15.

This gemstone can blow away everything and make things bright like a clear blue sky. This phenomenon is called asterism and can push the value up of stone enormously. If certified burmese and untreated add 50 except fair or lower grades. Formed by what is commonly known to be needles in the gemstone industry the star seen on a sapphire tends to be more valuable when the rays are sharper and the body color of the gem is a deep night sky blue.

Get it as soon as thu oct 8. Buy colored gemstones by size and not by carat weight. 3 3 out of 5 stars 34. Parti sapphires show two or more colors.

Star sapphires are mined in myanmar and sri lanka. Add 10 to 20 for emeralds and marquis. The thai blue star sapphire is a variety of sapphire that displays a six pointed star pattern radiating from the inky depths of the stone. Similar to the blue sapphire differs in that it has an aqueous inclusion in its makeup that creates a refracted five pointed star on the stone s surface.

Some stones exhibit the phenomenon known as color change most often going from blue in daylight or fluorescent lighting to purple under incandescent light. Tiny needles of silk within the sapphire crystal reflect light and form a star sapphire s telltale star. In case of black star sapphires as well as blue star sapphires such a treatment is very common. Star sapphire is rarely available in large sizes so most jewelry will feature small stones only.

Star sapphires exhibit a special optical phenomenon called asterism. Free shipping by amazon.