Not a diamond; this specimen appears to be a natural green gemstone, likely emerald, green tourmaline, or green glass/synthetic material given the vivid green color and raw crystal morphology.
Not a diamond; this specimen appears to be a natural green gemstone, likely emerald, green tourmaline, or green glass/synthetic material given the vivid green color and raw crystal morphology. · Rough crystal / Uncut fragment
Not Applicable (Uncut rough specimen) Cut
Carat
Estimated 2.0 to 3.5 carats based on visual scale against human skin
Color
Vivid Green (Fancy Intense Green in gemological terms)
Clarity
Included (SI/I equivalent with visible internal fractures and dark inclusions)
Shape
Rough crystal / Uncut fragment
Overall Assessment
An interesting green rough gemstone specimen displaying natural crystal growth lines and characteristic inclusions, requiring professional gemological testing to definitively identify the mineral species.
Cut Quality
Not Applicable (Uncut rough specimen)
Brilliance
Low to moderate due to rough surface and opacity in sections
Fire
Low, characteristic of colored gemstones rather than diamond
Scintillation
Limited, reflecting light mainly off fracture planes and raw crystal faces
Proportions
Not Applicable for rough gemstone material
Symmetry
Asymmetrical raw crystal habit with striated prismatic faces
Polish
Rough/Unpolished with natural cleavage planes and fracture surfaces
Fluorescence
Unable to determine without UV testing; likely inert to moderate
Inclusions
Visible internal fractures, fissures, and a prominent dark mineral inclusion/spot
Blemishes
Surface irregularities, chips, and rough cleavage edges
Origin
Natural rough gemstone origin, potentially from a metamorphic or pegmatitic deposit
Treatment Detection
Possible oil or resin fracture-filling if confirmed as natural emerald
Estimated Value
Varies widely from $50 to $500 depending on exact mineral species (e.g., lower if glass/synthetic, higher if natural emerald or high-grade tourmaline)
Certification Estimate
GIA or Gübelin (if testing for colored stone origin and species)
Investment Potential
Low to moderate; speculative depending on final identification and whether it is cut and polished
Similar Diamonds
None, as this is a colored gemstone rough rather than a diamond
Setting Suggestions
Custom bezel or prong setting designed to protect fragile raw crystal edges in a pendant or statement ring
Care & Maintenance
Avoid ultrasonic cleaners, harsh chemicals, and hard impacts due to inherent internal fractures and cleavage planes
Interesting Facts
Vivid green rough stones often require specialized cutting to maximize color saturation and mask internal inclusions