Star Sapphire Stone Value

Apart from the hue the star sapphire s value also depends on the tone and saturation of the color.

Star sapphire stone value. The effect is best viewed under a direct light source and while tilting and rotating the stone from different angles. A top quality 1 to 2 carat stone might retail for prices between 800 1200 per carat. A very sharp and well defined star is hard to find so a perfect star in a stone will increase the price. Firstly the most important part of star sapphires is the star.

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. Blue star sapphire ceylon good star si vvs type ii 1 000 to 3 000 per carat. Fine star sapphires must have enough silk for a bright well defined star without compromising the stone s transparency. In case of black star sapphires as well as blue star sapphires such a treatment is very common.

This star is a focus point in the gem. This is because of the natural hexagonal crystal structure of sapphire. The 182 carat star of bombay mined in sri lanka and located in the national museum of natural history in washington d c is another example of a large blue star sapphire. Geographic origin can also have a large effect on the value of a sapphire.

While quality 2 to 3 carat stones would sell for approximately double the price per carat so that would be around 1600 2000 per carat. Generally deeper more saturated and uniform is the color more will be the star sapphire gemstone value. Star sapphire value see our article called phenomenal gems to read more about the grading and valuation of stones with asterism. Pink sapphire stone price and black star sapphire cost also reflect their rarity and popularity in the trade.

The international gem society igs has a list of businesses offering gemstone appraisal services. When viewing star sapphire a six rayed star will appear to float across the surface of the stone. 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. A high quality cut can hide inclusions improve the sapphire s color and maximize the stone s visual appeal making the stone more valuable.

Cut can have a large impact on the appearance and value of your sapphire. The value of a star sapphire depends not only on the weight of the stone but also the body color visibility and intensity of the asterism.