Report · f8380f71-5775-4a76-b857-708b65e491e3

Gemstone Identification Report #005-2026

Ruby, Corundum — —

Issued

02/03/2026

Olena Rybnikova, PhD · GIA

Origin

Tanzania

Species
Ruby, Corundum
Specimen
—
Variety
Oval
Weight
0.580 ct
Dimensions
5.6 x 4.6 x 2.1
R.I.
1.762 - 1.770
D.R.
0.008
Pleo.
Weak purplish red to orangy red
Fluor. LW
LW (365 nm) - moderate red
Fluor. SW
SW (254 nm) - inert
Chelsea
Strong Red
Microscope
Internal fractures, fingerprints, host rock residues.
Treatment
Heated
Origin
Tanzania

No description provided.