The Carat Standard

IGI report LG790680004

3.00 ct Radiant Laboratory-Grown Diamond

86/100 · Refined

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

What reads well

  • Face-up spread (10.07 × 7.03 mm) is typical or better for a 3.00 ct radiant.
  • G color should face up white in most settings.
  • VS1 clarity is typically eye-clean in a radiant.
  • No fluorescence: no haze risk to weigh.
  • Medium to slightly thick girdle balances durability and weight retention.

What deserves a closer look

  • A 1.43:1 length-to-width ratio is outside the classic radiant range; the outline will look more elongated than typical.
  • The table 72% sits outside the typical radiant range.
  • G color in a 3.00 ct radiant may show some warmth, especially at the corners.
  • Screening only: bow-tie, windowing and contrast in a radiant 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 the large table look bright but flat, with less colored fire than you expected?
  • Does this CVD diamond show any brown or gray undertone face-up in daylight?
  • With Very Good polish and Very Good symmetry, are there visible misaligned facets or wheel marks?
  • 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
Radiant
Color
G
Clarity
VS1
Cut
Not stated
Measurements
10.07 × 7.03 × 4.65 mm
Table
72%
Depth
66.1%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Medium to slightly thick
Culet
Pointed
Polish
Very Good
Symmetry
Very Good
Fluorescence
None

How The Carat Standard reads a report