This is a very lovely pear cut blue topaz that is 16 x 9 mm, and weighs 8.3 carats. It is a very beautiful steely blue stone. The color is very nice, but is an unusual, very attractive color with a kind of dark steely tone to the blue. This is an unusual stone that will inspire your creative nature to make a most attractive and unusual piece of jewelry. You probably will not be able to find another stone to match this wonderful color, so your jewelry creation will be very unique.
Getting the color just right in a photograph is difficult, but I believe I did a good job. I hope it is close to the true steely blue color on your computer.
I purchased this stone in the 1980s at the end of the time I was making gold and silver jewelry. It is time I released it to someone else to use in their creations.
Most blue topaz has been heat treated to achieve the blue color, so this stone p probably is heat treated.