Natural rough crystal (likely colored corundum/sapphire or possibly blue diamond rough, though visually displays characteristics of a natural mineral crystal specimen)
Natural rough crystal (likely colored corundum/sapphire or possibly blue diamond rough, though visually displays characteristics of a natural mineral crystal specimen) · Rough uncut crystal form
Not applicable (uncut rough specimen) Cut
Carat
Estimated 1.5 - 2.5 carats based on visual scale
Color
Fancy Blue
Clarity
Included / SI2 - I1 equivalent for rough
Shape
Rough uncut crystal form
Overall Assessment
A fascinating natural rough crystal specimen exhibiting strong blue coloration and fluorescence, best appreciated in its raw, organic form.
Cut Quality
Not applicable (uncut rough specimen)
Brilliance
Low to moderate due to rough, unpolished surface
Fire
Minimal due to lack of standard faceted proportions
Scintillation
Limited, reflecting light off natural crystal faces
Proportions
Natural uncut proportions
Symmetry
Asymmetrical natural crystal habit
Polish
Raw, unpolished natural crystal faces
Fluorescence
Strong blue fluorescence visible under UV-reactive lighting conditions
Inclusions
Internal natural mineral inclusions and growth lines visible
Blemishes
Natural surface etching, trigons, and rough skin
Origin
Natural geological origin
Treatment Detection
No obvious signs of artificial treatment; appears completely untreated rough
Estimated Value
Varies by specific mineral species ($100 - $500 as a rough specimen)
Certification Estimate
GIA or similar major lab for mineral identification
Investment Potential
Collectible mineral specimen value rather than standard diamond investment
Similar Diamonds
Other natural rough blue diamond or colored gemstone crystal specimens
Setting Suggestions
Wire-wrapped or custom organic prong setting to preserve natural rough state
Care & Maintenance
Handle with care to prevent chipping along natural cleavage planes; clean with mild soapy water
Interesting Facts
Rough crystals show the natural geometry and growth history of the mineral before human intervention