Report · fec90696-2e5f-4660-b97c-2f4f95f7fa7a

Gemstone Identification Report #079-2026

Tourmaline — —

Issued

05/03/2026

Olena Rybnikova, PhD · GIA

Origin

—

Species
Tourmaline
Specimen
—
Variety
Round
Weight
0.580 ct
Dimensions
4.0 x 2.9
R.I.
1.620 - 1.640
D.R.
0.020
Pleo.
Moderate yellow to green
Fluor. LW
LW (365 nm) - inert
Fluor. SW
SW (254 nm) - inert
Chelsea
Strong Red
Microscope
Minute inclusions.
Treatment
Untreated
Chromium-bearing Tourmaline