Report · 8d9553fa-603b-4615-b7c2-8a2692a53eb6

Gemstone Identification Report #028-2026

Grandidierite — —

Issued

03/03/2026

Olena Rybnikova, PhD · GIA

Origin

Madagascar

Species
Grandidierite
Specimen
—
Variety
Cabochon
Weight
0.480 ct
Dimensions
5.3 x 4.5 x 2.8
R.I.
1.580 spot reading
D.R.
Not applicable
Pleo.
Strong blue - yellowish green - reddish orange
Fluor. LW
LW (365 nm) - inert
Fluor. SW
SW (254 nm) - inert
Chelsea
No reaction
Microscope
Fractures, crystals, feathers.
Treatment
Untreated
Origin
Madagascar

No description provided.