Natural Green Diamond (or high-pressure irradiated natural rough)
Natural Green Diamond (or high-pressure irradiated natural rough) · Uncut Rough Crystal / Irregular Fragment
Not applicable (Uncut rough specimen) Cut
Carat
Estimated 1.5 - 2.5 carats based on rough visual size
Color
Fancy Intense to Vivid Green
Clarity
SI1 - SI2 (Rough estimation)
Shape
Uncut Rough Crystal / Irregular Fragment
Overall Assessment
An intriguing and vibrant green rough diamond specimen. Its value and classification heavily rely on gemological laboratory testing to confirm the natural origin of its striking green coloration.
Cut Quality
Not applicable (Uncut rough specimen)
Brilliance
Low to moderate due to rough unpolished state
Fire
Obscured by rough surface and deep green body color
Scintillation
Minimal until faceted and polished
Proportions
Natural rough morphology, unproportioned
Symmetry
Natural crystal asymmetry
Polish
Raw/Natural crystal faces with unpolished surface
Fluorescence
Likely Strong Yellow to Orange (common in naturally irradiated green diamonds)
Inclusions
Internal natural mineral inclusions, feathers, and cloud clusters typical of rough stones
Blemishes
Natural surface trigons, pitting, and rough skin
Origin
Likely alluvial deposit from regions known for green diamonds (e.g., South America or Africa)
Treatment Detection
Requires advanced spectroscopic analysis (FTIR/Photoluminescence) to differentiate natural radiation stains from laboratory irradiation treatments
Estimated Value
Highly variable; highly dependent on whether color is natural radiation-induced or lab-treated, ranging from $1,000 to $10,000+ per carat for natural vivid green
Certification Estimate
GIA (Gemological Institute of America) - Colored Diamond Grading Report
Investment Potential
Strong for certified natural fancy vivid green diamonds due to extreme rarity
Similar Diamonds
Other natural green rough diamonds, green fancy colored polished diamonds
Setting Suggestions
Custom designer bezel setting in yellow or white gold to preserve weight and highlight the unique natural rough shape
Care & Maintenance
Standard ultrasonic cleaner caution for rough stones with internal fractures; store separately to avoid scratching other gems
Interesting Facts
Green diamonds get their color naturally from exposure to radioactive rocks (such as uranium deposits) over millions of years, which creates radiation stains on the crystal lattice