The Carat Standard

IGI report LG788669819

3.52 ct Cushion Laboratory-Grown Diamond

88/100 · Refined

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

What reads well

  • Face-up spread (10.98 × 7.79 mm) is typical or better for a 3.52 ct cushion.
  • Table 63% and depth 68.8% fall in the typical cushion range.
  • Excellent polish and symmetry, the top finish grades.
  • E color is in the colorless range.
  • VS1 clarity is typically eye-clean in a cushion.

What deserves a closer look

  • A 1.41:1 length-to-width ratio is outside the classic cushion range; the outline will look more elongated than typical.
  • Screening only: for this cushion, check images or video of the exact stone for the facet pattern (bold, chunky flashes or finer "crushed ice") and any dark areas under the table.
  • 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 63%, the table sits within the typical 56–66% range for a cushion, balancing brightness with fire.
Total depth · Ideal
68.8% is within the typical 61–69% range for a cushion, keeping weight where it contributes to face-up size and light return.
Length-to-width · Favorable
A 1.41:1 outline is longer and slimmer than the classic 1–1.35:1 range for a cushion — 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 · Ideal
Medium To Thick (Faceted): a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal
Pointed: no visible culet facet when viewed face-up.
Color · Ideal
E is in the colorless range and faces up white in any metal.
Clarity · Favorable
VS1 is typically eye-clean.
Fluorescence · Ideal
None: no meaningful effect on appearance.

What to check on the exact stone

  • Does this cushion produce broad, chunky flashes or small needle-like crushed-ice sparkle?
  • 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
3.52 ct
Shape
Cushion
Color
E
Clarity
VS1
Cut
Not stated
Measurements
10.98 × 7.79 × 5.36 mm
Table
63%
Depth
68.8%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Medium to thick (faceted)
Culet
Pointed
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

About The Carat Standard Score

How The Carat Standard reads a report