Black Star Sapphire Value

What are some of the properties of star sapphire gemstones.

Black star sapphire value.

By using the top menu you can search by origin carat weight size price and other factors to enable you to find the exact gemstone that you are looking for. Star sapphire value see our article called phenomenal gems to read more about the grading and valuation of stones with asterism. There are also black star sapphire varieties that exhibit pink and purple hues. Star sapphire is a durable popular stone for men s rings.

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. 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. Unlike black sapphire black star sapphire is a very expensive gemstone and can cost thousands of dollars.

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. In natural light this color changing sapphire turns blue but in artificial light it displays a violet color. From this page you can filter the results further by using the left hand menu. Star sapphires contain intersecting needle like inclusions that cause the appearance of a six rayed star shaped pattern.

Black star sapphires owe their stars and their dark color to included crystals of the shiny mineral hematite. 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. Star sapphire is a type of sapphire that exhibits a star like phenomenon known as asterism. However the yellow and pink sapphire have become very popular and are now often seen in jewelry.

This stone s black color is a result of iron and titanium traces present in the mineral. Black star sapphire is mostly mined in thailand west africa and india. Category 1970s modernist vintage star sapphire rings. The inclusions are typically the mineral rutile but in black star sapphire it is inclusions of hematite that cause the star effect.

Clarity in star sapphires is a complicated issue. Sapphires can range in price depending on the price. The price of some sapphires ranges from 25 per carat to over 11 000 per carat. Star sapphires contain unusual tiny needle like inclusions.