The Carat Standard

GIA report 7551406177

3.50 ct Oval Diamond

89/100 · Refined

A strong candidate on paper; confirm its light pattern in imagery.

What reads well

  • A 1.45:1 length-to-width ratio sits in the classic oval range.
  • Face-up spread (12.05 × 8.30 mm) is typical or better for a 3.50 ct oval.
  • Excellent polish and symmetry, the top finish grades.
  • F color is in the colorless range.
  • VVS2 clarity: inclusions are not a practical visual factor.

What deserves a closer look

  • Strong blue fluorescence in a F-color stone: a small share of such stones look hazy in sunlight. View it in daylight and neutral light.
  • Screening only: for this oval, check images or video of the exact stone for the bow-tie (a dark band across the centre) and whether both ends look even.

The reading, field by field

Table · Ideal
At 61%, the table sits within the typical 53–63% range for an oval, balancing brightness with fire.
Total depth · Closer look
63.9% is deeper than typical for an oval (58–63.5%). Extra depth holds weight below the girdle, so the stone can face up smaller than its carat weight suggests and may show a stronger bow-tie.
Length-to-width · Ideal
A 1.45:1 outline is within the classic 1.3–1.5:1 range for an oval.
Polish · Ideal
Excellent polish is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
Symmetry · Ideal
Excellent symmetry is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
Girdle · Ideal
Medium to thick, faceted: a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal
None: no visible culet facet when viewed face-up.
Color · Ideal
F is in the colorless range and faces up white in any metal.
Clarity · Ideal
VVS2: inclusions, if any, are only visible under magnification.
Fluorescence · Closer look
Strong Blue fluorescence in an F stone occasionally causes a slight haze in sunlight. View it in daylight before buying.

What to check on the exact stone

  • With 63.9% depth, does this stone face up smaller than a typical 3.50 ct oval?
  • Does this F diamond show any milky haze when viewed outdoors in direct sunlight?
  • In a face-up video, does the bow-tie flicker as the stone tilts, or stay a fixed dark band across the center?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
3.50 ct
Shape
Oval
Cut grade
Not given for this shape
Color
F
Clarity
VVS2
Measurements
12.05 × 8.30 × 5.30 mm
Table
61%
Total depth
63.9%
Crown angle
Not given for this shape
Pavilion angle
Not given for this shape
Polish
Excellent
Symmetry
Excellent
Girdle
Medium to thick, faceted
Culet
None
Fluorescence
Strong Blue

About The Carat Standard Score

How The Carat Standard reads a report