The provided gemstone is actually not a diamond, but rather a deep red colored gemstone, likely a dark garnet or ruby given its deep red coloration.
The provided gemstone is actually not a diamond, but rather a deep red colored gemstone, likely a dark garnet or ruby given its deep red coloration. · Oval
Good Cut

Carat
Estimated around 1.5 to 2.0 carats based on visual proportions.
Color
Fancy Dark Red
Clarity
SI1 (Slightly Included) based on minor internal shadows visible.
Shape
Oval
Overall Assessment
An attractive dark red oval gemstone with pleasing proportions, though its dark saturation slightly reduces overall brilliance.
Cut Quality
Good
Brilliance
Moderate brilliance due to the very dark tone limiting light return.
Fire
Low to moderate fire, typical for darker colored gemstones.
Scintillation
Displays standard play of light with alternating dark and bright facets when moved.
Proportions
Medium table and moderate depth typical of standard oval mixed cuts.
Symmetry
Good symmetrical oval proportions with minor variations.
Polish
Good polish with smooth facet junctions visible under magnification.
Fluorescence
Cannot be accurately determined without UV testing, likely none to faint.
Inclusions
Some localized dark mineral inclusions or slight feathering internally.
Blemishes
Minimal surface blemishes, minor abrasion along the girdle edge.
Origin
Natural geological origin, likely metamorphic rock formations.
Treatment Detection
No obvious signs of severe treatments, though standard heat treatment cannot be ruled out without advanced spectroscopic analysis.
Estimated Value
$100 - $300 depending on exact species confirmation (garnet vs ruby).
Certification Estimate
GIA or local gemological laboratories would grade this as a natural colored gemstone.
Investment Potential
Low investment potential; colored gemstones of this grade are generally valued for ornamental rather than investment purposes.
Similar Diamonds
Not applicable as this is a colored gemstone rather than a diamond.
Setting Suggestions
Yellow gold or white gold prong setting to maximize light entry from the sides.
Care & Maintenance
Clean with warm soapy water and a soft brush; avoid harsh ultrasonic cleaners if inclusions are present.
Interesting Facts
Deep red stones like almandine garnets were historically prized and often confused with rubies in ancient jewelry.