4.01 ct Oval Laboratory-Grown Diamond

What reads well

• A 1.44:1 length-to-width ratio sits in the classic oval range.
• Face-up spread (12.54 × 8.72 mm) is typical or better for a 4.01 ct oval.
• Excellent polish and symmetry, the top finish grades.
• D color is in the colorless range.
• VVS2 clarity: inclusions are not a practical visual factor.

What deserves a closer look

• A 65% 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 62%, the table sits within the typical 53–63% range for an oval, balancing brightness with fire.

Total depth · Closer look

65% 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 1.44:1 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 · 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

D 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 65% depth, does this stone face up smaller than a typical 4.01 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

4.01 ct

Shape

Oval

Cut grade

Not given for this shape

Color

D

Clarity

VVS2

Measurements

12.54 × 8.72 × 5.67 mm

Table

62%

Total depth

65%

Crown angle

Not given for this shape

Pavilion angle

Not given for this shape

Polish

Excellent

Symmetry

Excellent

Girdle

Thick to very thick (faceted)

Culet

Pointed

Fluorescence

None