Report · 916612ac-119f-4c0e-94d9-06ed9b7cc5fb

Gemstone Identification Report #017-2026

Sapphire, Corundum — —

Issued

02/03/2026

Olena Rybnikova, PhD · GIA

Origin

Australia

Species
Sapphire, Corundum
Specimen
—
Variety
Oval
Weight
0.580 ct
Dimensions
5.8 x 4.8 x 2.4
R.I.
1.762 - 1.770
D.R.
0.008
Pleo.
Weak blue to slightly greenish blue
Fluor. LW
LW (365 nm) - inert
Fluor. SW
SW (254 nm) - inert
Chelsea
No reaction
Microscope
Cloudy appearance, frosted feathers, diffused color zoning.
Treatment
Heated
Origin
Australia
Confirmed by Raman spectroscopy.