0.45 ct Very rare top luster untreated purple spinel

Product No: 1807spi0006
Stone Type: Natural Spinel
Shape: Oval
Total Weight: 0.45 Carat
Size (mm): 4.7x4.2x3.3mm
Color: Purple
Clarity: SI3
Luster: Very Good
Hardness: 8.5
Treatment: Natural/Untreated
Origin: Tanzania