Indeterminate / Most likely not a diamond
Indeterminate / Most likely not a diamond · Rough / Uncut / Irregular
N/A (Rough / Unfaceted) Cut
Carat
Unknown, image lacks scale or dimensions
Color
Deep Blue / Indigo
Clarity
Opaque to Translucent (Included)
Shape
Rough / Uncut / Irregular
Overall Assessment
The specimen appears to be a blue mineral crystal (possibly rough Tanzanite or Kyanite) rather than a diamond. It lacks the isometric crystal structure and adamantine luster characteristic of a diamond.
Cut Quality
N/A (Rough / Unfaceted)
Brilliance
Poor (Low light return due to rough surface)
Fire
None detected
Scintillation
Low (Dull surface luster)
Proportions
N/A
Symmetry
N/A (Natural rough form)
Polish
N/A (Unpolished)
Fluorescence
Likely induced by blue lighting environment
Inclusions
Heavy internal fracturing, clouding, and crystalline growth patterns
Blemishes
External pitting and surface irregularities standard for rough mineral specimens
Origin
Possibly Tanzanian if Zoisite; inconclusive from image
Treatment Detection
Unable to determine without polarized light microscopy
Estimated Value
Minimal to Commercial depending on mineral identity (e.g., Tanzanite or Sapphire versus glass)
Certification Estimate
N/A; requires gemological lab testing for mineral identification
Investment Potential
Low (Unfinished specimen)
Similar Diamonds
None; does not resemble gem-quality diamond rough
Setting Suggestions
N/A; specimen requires lapidary work before setting
Care & Maintenance
Avoid harsh chemicals and ultrasonic cleaners until mineral hardness is confirmed
Interesting Facts
Natural blue diamonds are extremely rare; the color here is more consistent with other mineral species