Natural (Likely Quartz or Glass Simulant based on visual fracture)
Natural (Likely Quartz or Glass Simulant based on visual fracture) · Indeterminate Rough / Organic Carved
Poor (Non-standard faceting; likely a natural specimen or carved piece) Cut
Carat
Estimated 5.0 - 15.0 carats (based on scale and macro focus)
Color
Lacks specific grade (Pale Yellow to Near Colorless tint)
Clarity
I3 (Heavy inclusions and internal fractures visible)
Shape
Indeterminate Rough / Organic Carved
Overall Assessment
The specimen presents characteristics more consistent with a large quartz crystal or glass simulant than a gemstone-quality diamond. The conchoidal fracture patterns suggest a non-diamond mineral structure.
Cut Quality
Poor (Non-standard faceting; likely a natural specimen or carved piece)
Brilliance
Low (Diffused light return)
Fire
High chromatic dispersion (Rainbow-like flashes from internal fractures)
Scintillation
Poor (Unstructured light pattern)
Proportions
Not applicable to this non-standard shape
Symmetry
Poor (Asymmetrical geometric patterns)
Polish
Fair (Visible surface texture and uneven reflection)
Fluorescence
Indeterminate under current lighting
Inclusions
Large internal feathers, gas bubbles, or fluid-filled cavities
Blemishes
Visible pits, surface scratches, and conchoidal fractures
Origin
Indeterminate / Likely semi-precious mineral specimen
Treatment Detection
No obvious chemical treatments visible; possibly fracture-filled if glass
Estimated Value
$50 - $200 (Subject to confirmation of material as quartz or rough diamond)
Certification Estimate
Unlikely to be certified by GIA/AGS as a gemstone; GRS or local lab as rough
Investment Potential
Low (Primarily a decorative or scientific curiosity)
Similar Diamonds
Rough yellow diamonds from Africa or clear quartz crystals
Setting Suggestions
Bezel or wire wrap for display as a raw specimen
Care & Maintenance
Avoid ultrasonic cleaners; handle with care to prevent fracture propagation
Interesting Facts
The 'rainbow' effect seen is likely thin-film interference within internal fractures