Home › Forums › Specific Discussion › Identification › How to Identify Neelam (Blue Sapphire)? › The gemstone shown in the
August 11, 2009 at 10:36 am #5248
The gemstone shown in the above link should be blue sapphire.
Since this gemstone is very clean it is not possible to make out whether it is natural or synthetic under the basis of picture.
Sapphires (mostly yellow and blue) which comes from Bangkok (Thailand) are mostly heat treated. Even “natural colorless sapphire” are converted to “natural blue sapphire” with heat treatment.