Natural grey Botswana Agate - 43.183 ct - long oval Cabochon - certified natural

Natural grey Botswana Agate - 43.183 ct - long oval Cabochon - certified natural
Add elegance to your collection with this 43.183 ct Natural grey Botswana Agate.

Natural Gems Belgium Colored Stone Certification CA-BOAG024GR-002-177

IDENTIFICATION :

Species : Natural Chalcedony (a cryptocrystalline form of quartz)
Variety : Agate

DESCRIPTION

Shape & Cutting Style : long oval, cabochon, polished both sides
Measurements : 45 x 25.2 x 4.1 mm
Carat Weight : 43.183 Carat
Color : shades of grey (back side brownish red and grey)
Clarity : N/A
Transparency : Semi-Translucent

Birefringence : Up to 0.004
Crystallography : Hexagonal (trigonal)
Dispersion : None
Luster : Waxy
Hardness : 6.5-7
Refractive index : 1.530-1.543
Specific gravity : 2.60-2.64

COMMENTS :

No indications of heating
correction of pictures capture; the pictures do not indicated truely colors as hey are;
front side of stone almost completey grey tones 
back side brownish red with grey tones, white dots visible on gemstone are sparkling

Personal Note From Natural Gems Belgium:

This oval shaped cabochon has good polish grade, fair to good symmetry, and has a nice natural variation of grey tones. Very nice pattern, very good and unique color.
natural inequalities due to crystal formation

FIND THE ONLINE CERTIFICATE HERE

Find the video of this grey and brown botswana agate here

For impression take a look at the pictures, 

all items are sent insured with track and trace regardless of value