Natural diamond in rough, uncut crystal form
Natural diamond in rough, uncut crystal form · Rough crystal / Natural octahedron or irregular rough form
Not Applicable (Uncut rough stone) Cut

Carat
Estimated 1.5 - 2.5 carats based on rough crystal visual scale
Color
Near-colorless to faint yellow tint (Estimated G-J range)
Clarity
Included (Estimated I1-I2 due to natural internal cloudiness and crystal imperfections)
Shape
Rough crystal / Natural octahedron or irregular rough form
Overall Assessment
A fascinating natural diamond in its raw, uncut state, showcasing the authentic geological formation of carbon under extreme pressure and temperature before human craftsmanship.
Cut Quality
Not Applicable (Uncut rough stone)
Brilliance
Low to moderate due to uncut, unpolished surfaces diffusing light
Fire
Minimal due to lack of standard pavilion and crown facets
Scintillation
Limited, showing flashes only on natural reflective crystal faces
Proportions
Natural crystal proportions, unfaceted
Symmetry
Natural crystal symmetry
Polish
Unpolished natural crystal faces (trigons and natural striations visible)
Fluorescence
Cannot be determined without UV light testing (Likely none to medium blue)
Inclusions
Internal clouds, feathers, and potential crystal mineral inclusions typical of rough diamond
Blemishes
Natural surface etchings, trigons, and irregular rough texture
Origin
Natural geological origin (African or Canadian rough diamond source likely)
Treatment Detection
No signs of artificial treatment; completely untreated natural rough stone
Estimated Value
Depends heavily on weight and cutting potential, roughly $500 - $1,500 USD as rough specimen
Certification Estimate
GIA or AGS if polished; currently raw rough stone requiring Kimberley Process documentation
Investment Potential
Moderate as a collector's specimen or custom-cut investment piece
Similar Diamonds
Other natural unpolished rough diamond crystals and uncut mineral specimens
Setting Suggestions
Raw diamond minimalist bezel setting, rustic jewelry design, or organic prong setting in yellow gold
Care & Maintenance
Clean gently with warm soapy water and a soft brush; avoid harsh chemicals and ultrasonic cleaners on raw specimens
Interesting Facts
Rough diamonds often exhibit triangular growth marks called trigons on their crystal faces formed deep within the Earth's mantle