Black Star Sapphire Value

What are some of the properties of star sapphire gemstones.

Black star sapphire value.

Black star sapphire is mostly mined in thailand west africa and india. There are also black star sapphire varieties that exhibit pink and purple hues. In ancient times star sapphire was regarded as a powerful talisman guiding travelers and seekers of all kinds. A black star sapphire supports a masculine image best.

Star sapphires contain intersecting needle like inclusions that cause the appearance of a six rayed star shaped pattern. However the yellow and pink sapphire have become very popular and are now often seen in jewelry. Make offer black star sapphire diamonds and 14 k gold ring vintage size 6 1 4 1960s 12 9 g black star sapphire halo ring in heavy 18k yg setting w 24 old cut diamonds 11g 1 199 00. Substantial 1970 s modernist ring very reminiscent of the designs of arthur king with an oval black star sapphire measuring 9mm by 7mm and two diamonds 35 and 15 carat g h vs si.

Blue star sapphire ceylon good star si vvs type ii 1 000 to 3 000 per carat. The black sapphire gemstones in stock include huge black star sapphires and small black sapphire gems. The international gem society igs has a list of businesses offering gemstone appraisal services. Star sapphire is a type of sapphire that exhibits a star like phenomenon known as asterism.

The price of some sapphires ranges from 25 per carat to over 11 000 per carat. In natural light this color changing sapphire turns blue but in artificial light it displays a violet color. Category 1970s modernist vintage star sapphire rings. Star sapphire value see our article called phenomenal gems to read more about the grading and valuation of stones with asterism.

Star sapphires contain unusual tiny needle like inclusions. The inclusions are typically the mineral rutile but in black star sapphire it is inclusions of hematite that cause the star effect. From this page you can filter the results further by using the left hand menu. This stone s black color is a result of iron and titanium traces present in the mineral.

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. Unlike black sapphire black star sapphire is a very expensive gemstone and can cost thousands of dollars. Clarity in star sapphires is a complicated issue. Black star sapphires owe their stars and their dark color to included crystals of the shiny mineral hematite.