BREATHTAKING! 37.75CTW Pear-cut Natural Unheated Swiss Blue Topaz
Brand New with Certification included.
Prepared to be in awe with this breathtaking
Huge Swiss Blue Topaz stone.
Dimensions: 28 X 20 X 11MM
Weight: 37.75 CTW
Color: Blue
Color intensity: Swiss Blue
Clarity: Very Slightly Included
Shape: Pear-cut
Refractive Index: 1.62-1.63
Optic Character: DR
Specific Gravity: 3.58
Origin: Brazil
Species: Topaz
Look at the Stone''s Clarity: most of the blue topaz available today are eye-clean, which means they do not have inclusions visible to the naked eye.
As such, if you notice any scratches, cracks, dots
or tiny fractures in the gem, then it may not be a
real blue topaz.
The difference between blue topaz and London blue topaz is that the color of London blue topaz is not natural. It is created with the help of irradiation and heat treatment to achieve a darker hue.
Unfortunately, there isn''t an “official” scale, but most scales go from AAAA down to AA or even B.
