Natural rough diamond crystal
Natural rough diamond crystal · Uncut elongated crystal / rough macdle or flat
Not applicable (Rough uncut crystal) Cut
Carat
Estimated 3.5 to 5.0 carats based on visual scale against fingers and light source
Color
Fancy light yellow to yellow
Clarity
Included (I1-I2)
Shape
Uncut elongated crystal / rough macdle or flat
Overall Assessment
An intriguing natural yellow rough diamond crystal displaying classic growth features and vibrant backlighting translucency, perfect for a mineral collection or custom artistic lapidary project.
Cut Quality
Not applicable (Rough uncut crystal)
Brilliance
Low due to rough, unpolished surfaces acting as frosted glass
Fire
Limited dispersion visible internally through fracture planes
Scintillation
Minimal due to lack of faceted geometry
Proportions
Natural uncut elongated morphology
Symmetry
Natural crystal growth symmetry
Polish
Natural crystalline surface features (trigons and striations visible)
Fluorescence
Cannot be determined without UV light testing (typically Medium to Strong Blue in natural yellow rough)
Inclusions
Internal feather fractures, cloud clusters, and crystal inclusions visible under backlighting
Blemishes
Natural surface etch channels, pitted faces, and rough skin
Origin
Alluvial or primary kimberlite pipe deposit, typical of African or South American origin
Treatment Detection
None detected; appears entirely natural and untreated in its rough state
Estimated Value
Varies by weight and purity, roughly $1,500 to $3,500 USD for the rough specimen
Certification Estimate
GIA or EGL, certified as a Natural Diamond unmounted rough specimen
Investment Potential
Moderate, prized more by mineral collectors and custom lapidarists than traditional investors
Similar Diamonds
Other natural yellow industrial or low-purity gem-grade rough crystals
Setting Suggestions
Wire-wrapped pendant setting or custom organic bezel to preserve its raw, uncut beauty
Care & Maintenance
Store separately in a soft pouch to avoid scratching other gems, clean gently with warm soapy water and a soft brush
Interesting Facts
The elongated shape and striated surface are classic indicators of natural crystal growth under extreme mantle pressure