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Color Change Sapphire


GIA 7.56 ct. natural color change sapphire and diamond ring
GIA 7.56 ct. natural color change sapphire and diamond ring
Variety:  Color Change Sapphire
​Species:  Corundum
​​Mohs Hardness:  9 out of 10
Color:  Incandescent Lighting - Pinkish brown, brownish pink and purple.  Fluorescent Lighting - Yellowish brown, grayish blue or grayish violet.
RI:  1.762 to 1.770 (+0.009 / -0.005)
Birefringence:  0.008 to 0.010
SR/DR/AGG:  DR
Clarity Type:  Type II
Optic Character:  Uniaxial negative
Pleochroism:  Varies
Fluorescence:  Generally inert
SG:  4.00 (+0.10 / -0.05)
Routine Treatments:  Heating
Additional Enhancements:  N/A
SHOP SAPPHIRE JEWELRY

Color Change sapphire facts

GIA 7.56 ct. natural color change sapphire and diamond ring
GIA 7.56 ct. natural color change sapphire and diamond ring

Color change sapphires are a phenomenal variety of corundum that change color depending on the lighting conditions.


Color Change Sapphire Gallery

All photos courtesy of Scott Papper, GIA GG, AJP, CMA (NAJA), Global Gemology & Appraisals
  • HOME
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  • GLOSSARY