Non-diamond mineral (Likely Blue Apatite or Kyanite)
Non-diamond mineral (Likely Blue Apatite or Kyanite) · Rough / Uncut / Tabular Crystal
N/A (Rough stone) Cut
Carat
Estimated 2 to 5 carats
Color
Fancy Deep Teal Blue
Clarity
I3 (Included / Translucent)
Shape
Rough / Uncut / Tabular Crystal
Overall Assessment
The specimen is not a diamond. It is a blue mineral in rough form, exhibiting physical traits most consistent with Blue Apatite or possibly Kyanite. It lacks the refractive index, crystal habit, and brilliance of a rough diamond.
Cut Quality
N/A (Rough stone)
Brilliance
Very Low (Vitreous to sub-vitreous luster)
Fire
None visible
Scintillation
Extremely Low
Proportions
N/A
Symmetry
N/A (Natural crystal structure)
Polish
N/A
Fluorescence
Unknown (Typically weak for these minerals)
Inclusions
Heavy internal fracturing, cleavage planes, and mineral matrix on surface
Blemishes
External pitting and surface abrasions
Origin
Likely Brazil or Madagascar (regions known for Apatite)
Treatment Detection
None visible; appears to be a natural mineral specimen
Estimated Value
$5 - $20 USD as a specimen
Certification Estimate
N/A (Gemstone ID required over diamond grading)
Investment Potential
Minimal (Common decorative mineral specimen)
Similar Diamonds
None (This is not a diamond; share visual traits with Blue Tourmaline/Indicolite)
Setting Suggestions
Wire wrapping or custom prong setting if cut; currently a collector's specimen
Care & Maintenance
Fragile; Apatite and Kyanite have low hardness (5-7 Mohs). Avoid ultrasonic cleaners and high heat.
Interesting Facts
If this is Apatite, it is the defining mineral for level 5 on the Mohs scale of hardness.