The Carat Standard

IGI report LG791607192

3.02 ct Oval Laboratory-Grown Diamond

83/100 · Considered

A balanced profile with a few questions to carry forward.

What reads well

  • Face-up spread (13.27 × 7.37 mm) is typical or better for a 3.02 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.
  • No fluorescence: no haze risk to weigh.

What deserves a closer look

  • A 1.80:1 length-to-width ratio is outside the classic oval range; the outline will look more elongated than typical.
  • A 64.6% depth is on the deep side for an oval; deeper pavilions are associated with a stronger bow-tie and hidden weight.
  • Thick to very thick girdle: a thick girdle carries hidden weight and can reduce face-up size (thicker points are common in fancy shapes).
  • 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.
  • Treatment status is not stated on the report. For a laboratory-grown diamond, ask whether it is as-grown or post-growth treated.

The reading, field by field

Table · Ideal
At 58%, the table sits within the typical 53–63% range for an oval, balancing brightness with fire.
Total depth · Closer look
64.6% 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 · Favorable
A 1.8:1 outline is longer and slimmer than the classic 1.3–1.5:1 range for an oval — a matter of taste, but worth seeing in person.
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 · Closer look
Thick To Very Thick (Faceted): a thick girdle carries weight in the rim, so the stone can face up a little smaller for its carat weight. It is durable, though.
Culet · Ideal
Pointed: 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 · Ideal
None: no meaningful effect on appearance.

What to check on the exact stone

  • With 64.6% depth, does this stone face up smaller than a typical 3.02 ct oval?
  • In a face-up video, does the bow-tie flicker as the stone tilts, or stay a fixed dark band across the center?
  • Is extra carat weight trapped in the thick girdle rim where it does not add finger presence?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Laboratory-grown
Carat
3.02 ct
Shape
Oval
Color
F
Clarity
VVS2
Cut
Not stated
Measurements
13.27 × 7.37 × 4.76 mm
Table
58%
Depth
64.6%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Thick to very thick (faceted)
Culet
Pointed
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

About The Carat Standard Score

How The Carat Standard reads a report