Besides this if the quality remains the same larger color change sapphire stones sell for much higher prices.
Synthetic color change sapphire price per carat.
Some blue sri lanka sapphires also show a 6935 red fluorescent line and the 4500 line is very weak in these gems.
Color change sapphires price per carat ranges from approx 1393 inr 105008 approx to 2334 approx inr 175870 approx per carat.
Natural green sapphires show lines at 4500 4600 and 4700.
Synthetic color change sapphires show a line 4740.
However larger stones tend to have more inclusions and irregularities and hence lack in quality aspect.
These sapphires have various color change intensities from one stone to the next.
The standard for color change sapphires.
Synthetic green sapphires show lines at 5300 and 6870.
Synthetic color change sapphires show a line 4740.
Some color change sapphires will have only a slight visual change while others have incredible 100 change of color.
8 60 ct 11 3x9 3 mm purple color change star sapphire 6 ray lab corundum pcs7697 30 00 20 25 ct 18x13 8 mm alexandrite color change red to purple lab corundum pc6244.