The Carat Standard

IGI report LG797643109

5.00 ct Emerald Laboratory-Grown Diamond

84/100 · Refined

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

What reads well

  • Face-up spread (12.41 × 7.80 mm) is typical or better for a 5.00 ct emerald cut.
  • 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 1.59:1 length-to-width ratio is outside the classic emerald cut range; the outline will look more elongated than typical.
  • A 75% table is very large for a step cut, which can flatten the hall-of-mirrors effect.
  • Screening only: windowing, contrast and the step-cut "hall of mirrors" pattern in an emerald cut 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

  • Can you see straight through the center (windowing), or does it reflect clean steps?
  • With open step facets, is the center completely eye-clean without any visible dark marks?
  • 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
5.00 ct
Shape
Emerald
Color
F
Clarity
VVS2
Cut
Not stated
Measurements
12.41 × 7.80 × 4.97 mm
Table
75%
Depth
63.7%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Medium to slightly thick
Culet
Long
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

How The Carat Standard reads a report