Ceylon (Sri Lanka) Blue Sapphires are the world's finest blue sapphires. The most valuable blue sapphires are those with cornflower blue color.
The color of blue sapphires are vary from very light blue to very dark black like blue color with various tones.
Generally blue sapphires are heat treated to enhance the color and remove some inclusions.
Heat treatments of sapphires are acceptable.
Blue Sapphire is the birthstone of September and it is widely use a healing stone for astronomical purposes. Also blue sapphires are using with diamonds to make high value jewelry. Next to diamonds and ruby, blue sapphires are the most valuable gemstone in the market. The most common shapes are oval and cushion with step cut, but there are other shapes also.
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