Natural Fancy Colored Diamond (Likely Type Ia, exposed to natural radiation)
Natural Fancy Colored Diamond (Likely Type Ia, exposed to natural radiation) · Rough / Uncut Crystal Fragment with some cleavage planes
Not Applicable (Uncut Rough Crystal) Cut
Carat
Estimated 1.5 to 2.5 carats based on visual proportions against human fingers
Color
Fancy Deep Red-Orange to Brownish-Red
Clarity
Included (I1 to I2) due to visible surface fractures and internal imperfections
Shape
Rough / Uncut Crystal Fragment with some cleavage planes
Overall Assessment
An intriguing and rare specimen of a naturally colored rough diamond crystal exhibiting vibrant red-orange hues. While it has visible inclusions and structural fractures typical of raw material, its unique color and natural state make it a prized possession for mineral collectors and high-end custom jewelers.
Cut Quality
Not Applicable (Uncut Rough Crystal)
Brilliance
Low due to rough surface and heavy saturation of color
Fire
Moderate to low visibility due to dense color saturation and opaque rough texture
Scintillation
Minimal, characteristic of raw, unpolished mineral specimens
Proportions
Irregular raw crystal shape; non-standard depth and table percentages
Symmetry
Natural Asymmetric Crystal Formation
Polish
Raw Crystal Surface / Natural Cleavage Facets
Fluorescence
Likely Medium to Strong Yellow or Green under UV (common in natural colored rough)
Inclusions
Feather fractures, internal crystal stress lines, and dark carbon spots visible
Blemishes
Natural growth lines, pits, and rough edges from the mining/recovery process
Origin
Likely alluvial deposit or primary kimberlite pipe (potentially African or Australian origin known for colored stones)
Treatment Detection
No obvious signs of artificial irradiation or coating; natural origin suggested by internal growth structures
Estimated Value
Highly variable due to rarity; natural red-orange diamonds can command high collector prices, estimated at $1,000 to $5,000+ depending on exact weight and spectroscopy
Certification Estimate
GIA (Gemological Institute of America) would grade the color origin and specify it as a Natural Fancy Color Diamond
Investment Potential
High for collectors and connoisseurs of rare natural colored rough diamonds, though liquidity depends on finding a niche buyer
Similar Diamonds
Natural fancy colored rough diamonds, specifically red, orange, and brownish-orange collector crystals
Setting Suggestions
Custom bezel or prong setting in yellow gold or rose gold to complement the warm red-orange tones
Care & Maintenance
Handle with care to avoid extending existing natural fracture lines; clean gently with warm soapy water and a soft brush, avoiding ultrasonic cleaners due to internal fractures
Interesting Facts
Natural red and intense orange diamonds are among the rarest diamonds in the world, often colored by structural anomalies in the crystal lattice rather than chemical impurities like nitrogen or boron