18.42 ct large completely unique certified rutile quartz gemstone

Product No: 1605ruq0003
Stone Type: Natural Quartz
Shape: Oval
Total weight: 18.42 carats
Size (mm): 20.15x15.04x7.77mm
Color: See picture
Clarity: Transparent
Luster: Very Good
Hardness: 7
Treatment: Natural/Untreated
Origin: Brazil
The stone has a certificate from the GHI (Gemological Hallmark) lab and this comes free with the stone