The Carat Standard

IGI report LG772610593

1.00 ct Oval Laboratory-Grown Diamond

89/100 · Refined

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

What reads well

  • A 1.43:1 length-to-width ratio sits in the classic oval range.
  • Excellent polish and symmetry, the top finish grades.
  • E color is in the colorless range.
  • VS1 clarity is typically eye-clean in an oval.
  • No fluorescence: no haze risk to weigh.

What deserves a closer look

  • 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

  • With 63.8% depth, does this stone face up smaller than a typical 1.00 ct oval?
  • 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
1.00 ct
Shape
Oval
Color
E
Clarity
VS1
Cut
Not stated
Measurements
7.79 × 5.44 × 3.47 mm
Table
61%
Depth
63.8%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Slightly thick to thick (faceted)
Culet
Pointed
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

How The Carat Standard reads a report