Not a diamond; this specimen is Amazonite (a variety of Microcline feldspar).
Not a diamond; this specimen is Amazonite (a variety of Microcline feldspar). · Rough / Uncut (Natural crystal fragment)
None (Rough/Uncut) Cut

Carat
Estimated 25-45 carats based on size relative to carpet fibers
Color
Opaque light teal / sea-foam green (Not applicable to D-Z scale)
Clarity
Opaque (Does not transmit light)
Shape
Rough / Uncut (Natural crystal fragment)
Overall Assessment
The provided image shows a rough specimen of Amazonite feldspar rather than a diamond. It is identifiable by its characteristic turquoise-green color and white streaks.
Cut Quality
None (Rough/Uncut)
Brilliance
None (Opaque material)
Fire
None
Scintillation
None
Proportions
N/A
Symmetry
N/A (Rough specimen)
Polish
N/A (Natural matte/granular surface)
Fluorescence
Typically None to weak olive-green under UV
Inclusions
White veining characteristic of perthitic texture in feldspar
Blemishes
Natural fractures and rough edges
Origin
Likely Brazil, Russia, or Colorado (USA)
Treatment Detection
None visible; occasionally color-enhanced but this looks natural
Estimated Value
$2 - $10 (Common mineral specimen)
Certification Estimate
N/A for diamond grading; could be identified by GIA/local gemologist as Amazonite
Investment Potential
Low (Common semi-precious mineral)
Similar Diamonds
None; differs entirely in chemical composition and crystal structure
Setting Suggestions
Best suited for a wire-wrapped pendant or kept as a specimen stone
Care & Maintenance
Avoid impact; feldspar has perfect cleavage and a Mohs hardness of 6-6.5
Interesting Facts
Amazonite is named after the Amazon River, although no deposits are actually found there.