The Carat Standard

IGI report LG788614060

1.00 ct Pear Laboratory-Grown Diamond

89/100 · Refined

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

What reads well

  • A 1.69:1 length-to-width ratio sits in the classic pear range.
  • Face-up spread (9.30 × 5.50 mm) is typical or better for a 1.00 ct pear.
  • E 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

  • The table 66% sits outside the typical pear range.
  • Screening only: for this pear, check images or video of the exact stone for the bow-tie, even shoulders and a point that lines up with the centre of the rounded end.
  • 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 · Closer look
A 66% table is larger than typical for a pear (53–63%). Large tables can read bright but flatter, with less fire and contrast.
Total depth · Ideal
61.5% is within the typical 58–64% range for a pear, keeping weight where it contributes to face-up size and light return.
Length-to-width · Ideal
A 1.69:1 outline is within the classic 1.45–1.75:1 range for a pear.
Polish · Favorable
Very Good polish is a fine result; the difference from Excellent is rarely visible without magnification.
Symmetry · Favorable
Very Good symmetry is a fine result; the difference from Excellent is rarely visible without magnification.
Girdle · Ideal
Medium To Slightly 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 · Ideal
VVS2: inclusions, if any, are only visible under magnification.
Fluorescence · Ideal
None: no meaningful effect on appearance.

What to check on the exact stone

  • Does the large table look bright but flat, with less colored fire than you expected?
  • In a face-up video, does the bow-tie flicker as the stone tilts, or stay a fixed dark band across the center?
  • Will the ring setting use a protective V-tip prong or bezel to safeguard the delicate point?
  • 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
Pear
Color
E
Clarity
VVS2
Cut
Not stated
Measurements
9.30 × 5.50 × 3.38 mm
Table
66%
Depth
61.5%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Medium to slightly thick (faceted)
Culet
Pointed
Polish
Very Good
Symmetry
Very Good
Fluorescence
None

About The Carat Standard Score

How The Carat Standard reads a report