Report · a1eff584-a7f2-4239-8bd1-51411d3a9b1d

Gemstone Identification Report #011-2026

Sapphire, Corundum — —

Issued

02/03/2026

Olena Rybnikova, PhD · GIA

Origin

Madagascar

Species
Sapphire, Corundum
Specimen
—
Variety
Oval
Weight
0.750 ct
Dimensions
6.0 x 5.0 x 2.7
R.I.
1.763 - 1.771
D.R.
0.008
Pleo.
Strong blue to yellowish green.
Fluor. LW
LW (365 nm) - inert
Fluor. SW
SW (254 nm) - inert
Chelsea
No reaction
Microscope
Feathers, internal fractures.
Treatment
Untreated
Origin
Madagascar
Confirmed by Raman spectroscopy.