Natural rough microcrystalline aggregate (likely carbonado or diamond crust/drusy formation)
Natural rough microcrystalline aggregate (likely carbonado or diamond crust/drusy formation) · Rough crystal clusters, unpolished drusy aggregate
Not Applicable (uncut rough mineral aggregate) Cut
Carat
Irrelevant/Aggregate formation (thousands of micro-crystals totaling variable weight on host rock)
Color
Brown/Greyish fancy color due to impurities
Clarity
Included / Industrial Grade (opaque to translucent aggregate)
Shape
Rough crystal clusters, unpolished drusy aggregate
Overall Assessment
An impressive natural mineral specimen featuring a dense drusy crust of small diamond or diamond-like rough crystals embedded in host matrix, highly prized by mineral collectors and educators.
Cut Quality
Not Applicable (uncut rough mineral aggregate)
Brilliance
Low due to small crystal size, rough surfaces, and aggregation
Fire
Limited dispersion due to rough, unpolished micro-facets
Scintillation
Subtle glitter from countless tiny natural crystal faces
Proportions
Not Applicable for rough crystal drusy clusters
Symmetry
Asymmetric natural rough aggregate
Polish
Unpolished natural crystal faces and matrix
Fluorescence
Undetermined without UV testing (typical rough diamonds show moderate to strong blue, yellow, or green)
Inclusions
Abundant internal carbon spots, cloudiness, and mineral inclusions typical of rough formations
Blemishes
Natural surface etch channels, trigons, and matrix attachment areas
Origin
Natural alluvial or primary kimberlitic/lamproitic deposit
Treatment Detection
Untreated natural mineral specimen
Estimated Value
Specimen value varies based on mineralogical interest and matrix size rather than gem value
Certification Estimate
Not typically certified by GIA/AGS in matrix form; evaluated by specialized rough gemological institutes
Investment Potential
Valued as a unique geological and mineral collector's specimen rather than a liquidity investment
Similar Diamonds
Raw diamond matrix specimens, carbonado, and diamondiferous kimberlite ore
Setting Suggestions
Best preserved as a raw mineral specimen in a custom display mount rather than traditional jewelry
Care & Maintenance
Store securely in a padded mineral box, avoid harsh chemicals and ultrasonic cleaners to protect the host rock matrix
Interesting Facts
Shows diamonds in their natural crusted growth habit on host rock, exactly as recovered from nature before cutting and polishing