Natural rough diamond embedded in matrix
Natural rough diamond embedded in matrix · Uncut, raw crystal with natural octahedral and irregular morphology
Not applicable (Rough stone, unpolished) Cut
Carat
Difficult to determine precisely in matrix, estimated rough crystal weight is approximately 1.5 to 2.5 carats
Color
Industrial grade or off-color brownish-grey/yellowish tint in rough form
Clarity
Included (I2-I3 or industrial grade due to numerous internal inclusions and cloudy nature)
Shape
Uncut, raw crystal with natural octahedral and irregular morphology
Overall Assessment
This is a fascinating geological specimen showing a natural rough diamond crystal embedded within its host matrix rock rather than a polished gemstone, making it a unique educational and collectible piece.
Cut Quality
Not applicable (Rough stone, unpolished)
Brilliance
Low due to lack of facets and rough, opaque nature of the host matrix
Fire
Minimal to none in current rough state
Scintillation
Absent due to lack of standard faceting and polish
Proportions
Natural uncut proportions; deep unpolished crystal mass
Symmetry
Natural asymmetrical rough crystal habit
Polish
Raw, natural unpolished crystal faces (terrace growth lines and trigons likely present)
Fluorescence
Unknown without UV testing, typically inert to moderate blue in rough natural stones
Inclusions
Heavy internal cloudiness, feather fractures, mineral inclusions (such as graphite or olivine grains)
Blemishes
Natural surface textures, pitting, resorption features, and matrix attachment areas
Origin
Primary kimberlite or lamproite pipe deposit, or alluvial secondary deposit origin
Treatment Detection
None detected; entirely natural untreated rough mineral specimen
Estimated Value
Nominal mineral specimen value, approximately $50 to $150 depending on collector interest
Certification Estimate
Uncertified rough specimen; geological or mineralogical certificate rather than standard gemological grading lab (GIA/IGI do not typically grade rough matrix specimens)
Investment Potential
Low as a financial investment; primarily of interest to mineral collectors and educational displays
Similar Diamonds
Other natural kimberlite host rock specimens and unpolished industrial or specimen-grade rough diamonds
Setting Suggestions
Best kept as a raw mineral specimen in a custom bezel setting or wire-wrapped pendant if mounted in jewelry
Care & Maintenance
Handle with care to prevent matrix crumbling; clean gently with a soft brush and mild soapy water, avoiding harsh chemicals and ultrasonic cleaners
Interesting Facts
Most diamonds spend billions of years deep within the Earth's mantle before being brought to the surface via deep-source volcanic eruptions in kimberlite magma