Report · dcf7765c-cee5-4bf9-932a-07eaff166865

Gemstone Identification Report #014-2026

Star Sapphire, Corundum — —

Issued

02/03/2026

Olena Rybnikova, PhD · GIA

Origin

Bangkaja, Chanthaburi, Thailand

Species
Star Sapphire, Corundum
Specimen
—
Variety
Cushion
Weight
1.910 ct
Dimensions
8.3 x 6.0 x 3.0
R.I.
1.76 spot reading
Fluor. LW
LW (365 nm) - inert
Fluor. SW
SW (254 nm) - inert
Chelsea
No reaction
Microscope
Hexagonal color zoning.
Treatment
Diffusion
Origin
Bangkaja, Chanthaburi, Thailand

No description provided.