Natural (Likely Carbonado or heavily included Fancy Black)
Natural (Likely Carbonado or heavily included Fancy Black) · Pear shape with modified faceting
Fair to Good Cut
Carat
6.20 carats (as specified by user)
Color
Fancy Black (Opaque)
Clarity
Not Applicable (Opaque due to dense inclusions)
Shape
Pear shape with modified faceting
Overall Assessment
This is a substantial 6.20 carat Fancy Black diamond. Its value is primarily in its size and the unique, sub-metallic luster of its surface. Unlike white diamonds which rely on internal refraction, this stone's aesthetic value comes from its bold, opaque presence and light reflection off its external facets.
Cut Quality
Fair to Good
Brilliance
Low (Opaque; light does not pass through but reflects off surface)
Fire
None
Scintillation
Lustrous surface flash rather than internal sparkle
Proportions
Significant depth relative to width; large table facet with modified crown steps
Symmetry
Good
Polish
Good (visible surface luster on the table facet)
Fluorescence
None (typical for saturated black diamonds)
Inclusions
Dense concentration of graphite, pyrite, or magnetite inclusions throughout
Blemishes
Minor surface pits and potential surface-reaching fractures consistent with natural black diamonds
Origin
Likely Brazil or Central African Republic
Treatment Detection
Unable to confirm via image; Natural Black diamonds should be checked for irradiation or high-pressure high-temperature (HPHT) treatments used to darken commercial stones
Estimated Value
$1,500 - $3,500 (Note: Fancy Black diamonds are valued much lower per carat than white diamonds)
Certification Estimate
GIA (Colored Diamond Grading Report) for Fancy Black Natural Color
Investment Potential
Moderate to Low; Black diamonds are niche and do not follow the same appreciation curves as white or pink diamonds
Similar Diamonds
The Orlov Diamond (though white, shares a pear-like historical rose cut) or the Black Orlov
Setting Suggestions
Bezel or Halo setting in 14k/18k White Gold or Platinum to provide contrast against the black stone
Care & Maintenance
Avoid ultrasonic cleaners as natural black diamonds often possess numerous internal fractures that may expand
Interesting Facts
Natural black diamonds, or 'Carbonados', are thought by some researchers to have originated from interstellar space via meteoritic impact billions of years ago
Notes
6,20 black karat diamond