Natural quartz crystal (Herkimer Diamond style or similar doubly-terminated quartz, frequently misidentified as diamond)
Natural quartz crystal (Herkimer Diamond style or similar doubly-terminated quartz, frequently misidentified as diamond) · Custom carved or naturally faceted crystal habit with step-cut/brilliant hybrid appearance
Hand-cut or artisanal faceted specimen (Not standard gem proportions) Cut
Carat
Estimated roughly 15-25 carats equivalent based on visual size
Color
Fancy brownish-yellow to orange with internal iridescence
Clarity
Included (Contains visible internal fractures, liquid inclusions, and veils)
Shape
Custom carved or naturally faceted crystal habit with step-cut/brilliant hybrid appearance
Overall Assessment
This is a fascinating natural quartz crystal featuring complex internal facets, inclusions, and iridescence, held between fingers, valued as an aesthetic mineral specimen rather than a precious gemstone
Cut Quality
Hand-cut or artisanal faceted specimen (Not standard gem proportions)
Brilliance
Moderate, limited by internal inclusions and unorthodox faceting
Fire
Low (quartz exhibits lower dispersion than diamond)
Scintillation
Scattered flashes due to internal fracture planes
Proportions
Non-standard custom crystal carving with deep pavilion and irregular crown
Symmetry
Fair, artisanal facet alignment with natural crystal variations
Polish
Good, showing minor surface striations
Fluorescence
Likely inert to faint
Inclusions
Feathers, fractures, negative crystals, and iridescent internal planes
Blemishes
Natural surface pitting, minor chips along edges
Origin
Natural mineral specimen, likely pegmatite or hydrothermal vein origin
Treatment Detection
None apparent; appears as an untreated natural mineral crystal
Estimated Value
Minimal commercial value as a gemstone, valued primarily as a mineral specimen
Certification Estimate
Not typically certified by major diamond labs (GIA/AGS); evaluated by gemological testing as quartz
Investment Potential
Low investment value, collectible mineral specimen rather than a financial asset
Similar Diamonds
None, as this is quartz rather than diamond
Setting Suggestions
Wire-wrapped or custom bezel setting suitable for mineral specimens and crystal jewelry
Care & Maintenance
Clean with mild soap and warm water; avoid harsh chemicals and ultrasonic cleaners due to internal fractures
Interesting Facts
Referred to colloquially as 'Herkimer diamonds' when found as double-terminated quartz crystals in New York, highly prized by mineral collectors