Natural blue star sapphire burma color.
Blue star sapphire value.
Pink sapphire stone price and black star sapphire cost also reflect their rarity and popularity in the trade.
Sapphires with these qualities command the highest prices per carat.
The price of a sapphire is determined based on its quality which means that a large low quality sapphire would be a lot cheaper than a small but very high quality sapphire.
Al2o3 corundum aluminium oxide cut.
A burmese blue cabochon star sapphire and diamond cocktail ring.
Star sapphires occur in almost every color seen in transparent sapphires although yellow orange and green star sapphires are very uncommon.
Blue star sapphire blue sapphire with diamond ring in 18 karat gold setting located in bangkok th blue star sapphire 7 47 carats blue sapphire 3 54 carats with diamond 0 44 ct ring in 18 karat white gold settings width.
9 hardest after diamond formation.
The best star sapphires will have a blue transparent body with a nice deep blue color and a sharp and vibrant star.
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.
Top quality unheated stones could get a premium of 50 or higher especially if they re large.
Except fair or lower grades.
Typically mid quality untreated blue sapphire will sell for 20 30 more than a treated stone of the same quality.
Blue sapphires usually have some inclusions but generally have better clarity than rubies.
Color has the greatest influence on a sapphire s value and preferred sapphires have strong to vivid color saturation.
Star sapphire value price and jewelry information home gemstones star sapphire value price and.
1 8 cm ring size.
The most expensive sapphire was sold on record costing 135 000 per carat.
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.
It has a nice blue colour.
The optical phenomenon responsible for the star sapphire s shimmering rays is called asterism from the latin word astrum for star.
Apart from the hue the star sapphire s value also depends on the tone and saturation of the color.
A stone with a very transparent body is extremely rare and will fetch a high price.
The most valued blue sapphires are velvety blue to violetish blue in medium to medium dark tones.