Likely Natural Diamond
Likely Natural Diamond · Marquise Brilliant
Good (Common for marquise shapes) Cut
Carat
Estimated 0.75 - 1.00 carat
Color
Estimated H-I (Near Colorless)
Clarity
Estimated VS2-SI1
Shape
Marquise Brilliant
Overall Assessment
A well-proportioned marquise diamond in a classic yellow gold setting, exhibiting standard characteristics for a natural stone of this size and vintage style.
Cut Quality
Good (Common for marquise shapes)
Brilliance
Moderate to high white light return at the tips
Fire
Subtle spectral colors visible despite low lighting
Scintillation
Distinct pattern with a central bow-tie extinction zone
Proportions
Classic elongated marquise; table appearing slightly wide; visible bow-tie effect in center
Symmetry
Good
Polish
Very Good
Fluorescence
None visible under ambient light
Inclusions
Few minor pinpoints or crystals visible under magnification only
Blemishes
None visible to the naked eye
Origin
Likely earth-mined (Natural)
Treatment Detection
None detected; looks like a standard untreated stone
Estimated Value
$2,500 - $4,500 USD (including setting)
Certification Estimate
GIA (Gemological Institute of America) would be the standard lab for this stone
Investment Potential
Low to Moderate; fancy shapes hold value based on current trends more than rounds
Similar Diamonds
Classic 1.0ct Marquise F-H color stones
Setting Suggestions
The current solitaries gold band provides a classic look; V-prongs are recommended to protect the fragile points
Care & Maintenance
Clean regularly with warm soapy water and a soft brush; pay attention to the pointed tips during wear to prevent chipping
Interesting Facts
The Marquise shape was commissioned by King Louis XV of France to resemble the lips of the Marquise de Pompadour