Natural Fancy Colored Diamond (Chameleon or Irradiated Red/Brown)
Natural Fancy Colored Diamond (Chameleon or Irradiated Red/Brown) · Rough / Uncut Crystal
Not Applicable (Rough crystal) Cut
Carat
Estimated 1.50 to 2.50 carats
Color
Fancy Deep Red / Brownish Red
Clarity
SI1 - SI2 (Estimated for rough stone)
Shape
Rough / Uncut Crystal
Overall Assessment
An intriguing and deeply saturated rough crystalline specimen displaying intense red coloration under backlighting. Requires formal laboratory testing to authenticate natural origin and color permanence.
Cut Quality
Not Applicable (Rough crystal)
Brilliance
Subdued due to rough surface and deep saturation
Fire
Present internally, enhanced by backlighting
Scintillation
Limited due to lack of facets
Proportions
Natural uncut proportions with deep retention
Symmetry
Natural Crystal Symmetry (Irregular rough form)
Polish
Natural Crystal Faces (Unpolished)
Fluorescence
Medium to Strong Yellow (Typical for many colored diamonds under UV)
Inclusions
Natural mineral crystals and internal graining visible
Blemishes
Natural surface trigons and growth lines
Origin
Likely natural earth-mined (Argyle mine type or similar deep mantle origin)
Treatment Detection
Requires advanced spectroscopic testing (PL and FTIR) to rule out laboratory irradiation
Estimated Value
Highly variable; natural red diamonds command extreme premiums ($10,000 to $100,000+ per carat depending on exact origin and hue)
Certification Estimate
GIA Colored Diamond Grading Report
Investment Potential
Exceptionally high if natural Fancy Red, as red diamonds are among the rarest gems on Earth
Similar Diamonds
Argyle pink and red rough parcels, naturally irradiated fancy color rough
Setting Suggestions
Custom bezel or prong setting in 18k yellow or rose gold to complement the warm, fiery tone
Care & Maintenance
Standard ultrasonic cleaning safe, but avoid harsh acids and extreme thermal shock
Interesting Facts
Natural red diamonds are the rarest of all colored diamonds, with fewer than 30 true fancy reds known to exist with significant size