5.17 ct large luxury natural black spinel gemstone

Product No: 1807spi0005
Stone Type: Natural Spinel
Shape: Oval
Total Weight: 5.17 Carats
Size (mm): 12.1x10.1x5.7mm
Colour: Black
Clarity: PK
Luster: Very Good
Hardness: 8.5
Treatment: Natural/Untreated
Origin: Tanzania