Report · e3803ffd-91b9-4df4-8f71-427197883c88

Gemstone Identification Report #027-2026

Grandidierite — —

Issued

03/03/2026

Olena Rybnikova, PhD · GIA

Origin

Madagascar

Species
Grandidierite
Specimen
—
Variety
Pear
Weight
5.230 ct
Dimensions
13.2 x 9.8 x 6.7
R.I.
1.570 - 1.620
D.R.
0.050
Pleo.
Strong blue to yellowish green.
Fluor. LW
LW (365 nm) - inert
Fluor. SW
SW (254 nm) - weak green
Chelsea
No reaction
Microscope
Fractures, white hexagonal crystals and black inclusions of host-rock.
Treatment
Untreated
Origin
Madagascar

No description provided.