Non-diamond (Opaque Mineral/Green Aventurine or Quartzite)
Non-diamond (Opaque Mineral/Green Aventurine or Quartzite) · Tumbled/Freeform (Rough)
Not Applicable (Tumbled/Polished Stone) Cut
Carat
10.0 - 15.0 carats (estimated based on size relative to carpet fibers)
Color
Opaque Green (Fancy Deep Green equivalent color)
Clarity
Opaque (Non-gem quality for diamonds)
Shape
Tumbled/Freeform (Rough)
Overall Assessment
This is not a diamond. It is an opaque, tumbled green mineral, most likely green aventurine or a similar quartzite, with a waxy luster and significant internal veining inconsistent with diamond crystal structures.
Cut Quality
Not Applicable (Tumbled/Polished Stone)
Brilliance
None (Opaque material)
Fire
None (No light dispersion)
Scintillation
None (Matte to waxy luster)
Proportions
Irregular
Symmetry
Poor (Asymmetrical)
Polish
Good (Smooth tumbled surface)
Fluorescence
None observed
Inclusions
Mineral veining and internal fractures typical of quartz-based minerals
Blemishes
Surface pitting and scuffing visible on the crown area
Origin
Likely India or Brazil (Common sources for green aventurine)
Treatment Detection
None apparent; naturally occurring green mica inclusions (fuchsite)
Estimated Value
$1.00 - $3.00 USD (Decorative stone value)
Certification Estimate
Unlikely to be graded by diamond labs like GIA; would be identified as Aventurine/Quartzite by a gem lab.
Investment Potential
None (Common ornamental stone)
Similar Diamonds
No diamond similarity; resembles nephrite jade or moss agate visually.
Setting Suggestions
Wire wrapping, cage pendant, or pocket stone
Care & Maintenance
Wipe with a damp cloth; avoid harsh chemicals to preserve surface luster.
Interesting Facts
Green aventurine is known as the 'Stone of Opportunity' in metaphysical circles, though it is a common form of quartzite.