4.60 ct large extremely rare genuine grandidierite gemstone

Product No: 1912gra0003
Stone Type: Natural Grandidierite
Shape: Oval
Total Weight: 4.60 Carats
Size (mm): 11.2x9.3x6mm
Color: Green/Blue
Clarity: PK
Luster: Good
Hardness: 7.5
Treatment: Natural/Untreated
Origin: Madagascar