The Carat Standard

IGI report LG813615204

4.01 ct Oval Laboratory-Grown Diamond

88/100 · Refined

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

What reads well

  • Face-up spread (13.72 × 8.52 mm) is typical or better for a 4.01 ct oval.
  • Table 59% and depth 60.9% fall in the typical oval range.
  • Excellent polish and symmetry, the top finish grades.
  • E color is in the colorless range.
  • VVS2 clarity: inclusions are not a practical visual factor.

What deserves a closer look

  • A 1.61:1 length-to-width ratio is outside the classic oval range; the outline will look more elongated than typical.
  • 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.

What to check on the exact stone

  • In a face-up video, does the bow-tie flicker as the stone tilts, or stay a fixed dark band across the center?
  • Does this CVD diamond show any brown or gray undertone face-up in daylight?
  • 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
Color
E
Clarity
VVS2
Cut
Not stated
Measurements
13.72 × 8.52 × 5.19 mm
Table
59%
Depth
60.9%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Medium to slightly thick (faceted)
Culet
Pointed
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

How The Carat Standard reads a report