Natural Diamond (Rough / Uncut)
Natural Diamond (Rough / Uncut) · Rough Crystal / Irregular Crystal Form
Not Applicable (Uncut Rough) Cut
Carat
Estimated 1.5 to 2.5 carats
Color
Fancy Red / Strong Orange-Red (Colored Diamond)
Clarity
I1 to I2 (Visible internal fractures and inclusions under backlighting)
Shape
Rough Crystal / Irregular Crystal Form
Overall Assessment
An intriguing and exceptionally rare specimen of natural red rough diamond material, showing strong internal fracture patterns under intense illumination, representing significant potential if cut and polished by a master lapidary
Cut Quality
Not Applicable (Uncut Rough)
Brilliance
Low due to rough, unpolished surface and deep absorption
Fire
Obscured by rough surface and strong body color
Scintillation
Minimal until faceted and polished
Proportions
Not Applicable for rough stones
Symmetry
Natural Crystal Symmetry (Distorted octahedral/dodecahedral habit)
Polish
Natural Crystal Faces / Resinous Luster
Fluorescence
Likely Inert to Strong under UV depending on nitrogen content
Inclusions
Internal cleavage planes, feathers, and potential carbon spots highlighted by strong backlighting
Blemishes
Natural surface trigons, etching features, and irregular growth lines
Origin
Likely Argyle Mine (Australia) origin or similar high-pressure tectonic environment known for colored diamonds
Treatment Detection
No obvious signs of artificial irradiation or coating, appears genuinely natural
Estimated Value
Varies significantly due to extreme rarity of natural red diamonds; raw speculative value dependent on cutting yield
Certification Estimate
GIA Colored Diamond Report
Investment Potential
Exceptionally high due to the supreme rarity of natural red diamonds in the global marketplace
Similar Diamonds
Historically rare natural red rough specimens and fancy red polished diamonds
Setting Suggestions
Custom bespoke mounting designed to protect fragile cleavage planes once cut, paired with contrasting white diamonds
Care & Maintenance
Store separately in a soft pouch to avoid damaging other stones; avoid harsh chemical cleaners and ultrasonic baths given the internal fractures
Interesting Facts
Natural red diamonds are among the rarest colored diamonds in the world, often deriving their color from a rare plastic deformation of the crystal lattice rather than chemical impurities