The optical phenomenon responsible for the star sapphire s shimmering rays is called asterism from the latin word astrum for star.
Blue star sapphire value.
Star sapphire value price and jewelry information home gemstones star sapphire value price and.
It has a nice blue colour.
Sapphires with these qualities command the highest prices per carat.
The best star sapphires will have a blue transparent body with a nice deep blue color and a sharp and vibrant star.
Except fair or lower grades.
The most expensive sapphire was sold on record costing 135 000 per carat.
Color has the greatest influence on a sapphire s value and preferred sapphires have strong to vivid color saturation.
9 hardest after diamond formation.
A stone with a very transparent body is extremely rare and will fetch a high price.
A burmese blue cabochon star sapphire and diamond cocktail ring.
Typically mid quality untreated blue sapphire will sell for 20 30 more than a treated stone of the same quality.
Top quality unheated stones could get a premium of 50 or higher especially if they re large.
Al2o3 corundum aluminium oxide cut.
The most valued blue sapphires are velvety blue to violetish blue in medium to medium dark tones.
The color and clarity of star sapphires has a major influence on the overall price.
1 8 cm ring size.
Pink sapphire stone price and black star sapphire cost also reflect their rarity and popularity in the trade.
Sapphire along with her sister gemstone ruby belongs to the corundum group of gemstones considered one of the hardest minerals on earth.
A star sapphire is so named due to the appearance of a star shaped format which presents itself when the sapphire is.
Blue star sapphire ceylon good star si vvs type ii 1 000 to 3 000 per carat.
Apart from the hue the star sapphire s value also depends on the tone and saturation of the color.
Amongst all the star sapphire colors blue star sapphire value remains the highest due to its rarity and high end beauty.
Natural blue star sapphire burma color.
Blue sapphires usually have some inclusions but generally have better clarity than rubies.
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.