Not a diamond; appears to be a rough green crystal, possibly tsavorite garnet, chrome tourmaline, or a synthetic green glass/quartz material.
Not a diamond; appears to be a rough green crystal, possibly tsavorite garnet, chrome tourmaline, or a synthetic green glass/quartz material. · Rough crystal / Uncut natural form with crystalline striations
Not Applicable (Rough, uncut stone) Cut
Carat
Estimated 3.5 to 5.0 carats based on visual size relative to a human hand
Color
Vivid Green (Fancy Intense to Vivid Green)
Clarity
Included / SI2 (contains visible internal fractures and surface striations)
Shape
Rough crystal / Uncut natural form with crystalline striations
Overall Assessment
A striking vivid green rough mineral specimen with high saturation. While not a diamond, it possesses strong decorative and mineralogical appeal pending formal gemological testing.
Cut Quality
Not Applicable (Rough, uncut stone)
Brilliance
Vitreous to sub-adamantine luster with localized high reflection on crystal faces
Fire
Low dispersion compared to diamond, typical of colored gemstone rough
Scintillation
Limited flash effect due to rough, unfaceted surfaces
Proportions
Not Applicable for rough material
Symmetry
Natural rough symmetry, irregular crystal habit
Polish
Unpolished natural crystal faces with striations
Fluorescence
Indeterminate without UV testing (potentially inert or moderate under long-wave UV)
Inclusions
Natural growth tubes, feather inclusions, and internal stress fractures
Blemishes
Natural surface etching, striations, and minor chips along edges
Origin
Likely East Africa (Kenya/Tanzania) if genuine tsavorite garnet or chrome tourmaline
Treatment Detection
No obvious signs of artificial treatments, appears as mined rough
Estimated Value
Varies significantly depending on mineral species ($50 - $500 if tsavorite or tourmaline rough; minimal if synthetic or glass)
Certification Estimate
GIA or GRS for colored gemstone identification report
Investment Potential
Low as an investment unless verified as a high-quality rare colored gemstone species like tsavorite
Similar Diamonds
None (This specimen is a colored gemstone rough, not a diamond)
Setting Suggestions
Custom organic prong setting or wire-wrap to preserve the natural rough crystal appearance
Care & Maintenance
Avoid ultrasonic cleaners and harsh chemicals; store separately to prevent scratching other stones
Interesting Facts
Vivid green rough stones often owe their striking color to trace elements of chromium or vanadium within the crystal lattice