The Carat Standard

IGI report LG805639958

3.00 ct Cushion Laboratory-Grown Diamond

88/100 · Refined

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

What reads well

  • A 1.07:1 length-to-width ratio sits in the classic cushion range.
  • Face-up spread (8.96 × 8.40 mm) is typical or better for a 3.00 ct cushion.
  • Table 62% and depth 66.3% fall in the typical cushion range.
  • Excellent polish and symmetry, the top finish grades.
  • F color is in the colorless range.

What deserves a closer look

  • 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: bow-tie, windowing and contrast in a cushion can only be judged from images or video of this exact stone.
  • 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

  • Does this cushion produce broad, chunky flashes or small needle-like crushed-ice sparkle?
  • Is extra carat weight trapped in the thick girdle rim where it does not add finger presence?
  • 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
3.00 ct
Shape
Cushion
Color
F
Clarity
VVS2
Cut
Not stated
Measurements
8.96 × 8.40 × 5.57 mm
Table
62%
Depth
66.3%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Thick to very thick (faceted)
Culet
Pointed
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

How The Carat Standard reads a report