The specimen shown in the image is not a diamond; it appears to be a natural rough red gem-grade mineral, likely ruby or spinel.
The specimen shown in the image is not a diamond; it appears to be a natural rough red gem-grade mineral, likely ruby or spinel. · Rough crystal formation, unpolished and uncut
Not applicable as this is a raw, uncut mineral specimen Cut
Carat
Estimated around 1.5 to 2.5 carats based on visual proportion between fingers
Color
Vivid deep red, characteristic of fine-quality ruby or red spinel
Clarity
Included / I1 with visible internal fractures and surface irregularities
Shape
Rough crystal formation, unpolished and uncut
Overall Assessment
A striking natural red rough gemstone specimen held in fingers, requiring professional gemological testing to confirm exact species (ruby, spinel, or garnet)
Cut Quality
Not applicable as this is a raw, uncut mineral specimen
Brilliance
Low due to lack of faceting and rough surface texture
Fire
Minimal dispersion visible in raw form
Scintillation
Poor due to lack of polished facets
Proportions
Not applicable for raw rough material
Symmetry
Natural asymmetric crystal growth
Polish
Raw crystal surface with natural striations and matrix remnants
Fluorescence
Likely strong red fluorescence under UV light if ruby
Inclusions
Heavy internal feather fractures, needles, and potential mineral inclusions
Blemishes
Surface cavities, rough edges, and matrix adherence
Origin
Natural rough mineral, visually consistent with typical pegmatite or metamorphic deposits
Treatment Detection
No obvious signs of glass-filling or heat treatment in the raw state, but advanced lab testing is required
Estimated Value
Varies significantly depending on precise mineral identification (ruby vs. spinel vs. tourmaline) and exact weight; potentially $100 to $500 as a mineral specimen
Certification Estimate
GIA or Gübelin (if tested as high-end corundum)
Investment Potential
Collector mineral value rather than standard diamond investment potential
Similar Diamonds
Not applicable as this is a colored gemstone rough, not a diamond
Setting Suggestions
Custom wire-wrap or organic bezel setting to preserve the raw, natural aesthetic
Care & Maintenance
Store separately to prevent scratching other stones; avoid harsh chemical cleaners or ultrasonic baths if fractures are deep
Interesting Facts
Natural red rough stones are prized by mineral collectors for their raw crystalline beauty before lapidary work