0.51 ct extremely rare genuine natural Russian alexandrite gemstone

Product No: 1503ale0004
Stone Type: Natural Alexandrite
Shape: Round
Total Weight: 0.51 Carat
Size (mm): 4.7x4.6x2.5mm
Color: Green To Red
Clarity: Semi Transparent
Luster: Good
Hardness: 8.5
Treatment: Natural/Untreated
Origin: Russia