The Carat Standard

IGI report LG782647709

13.02 ct Pear Laboratory-Grown Diamond

88/100 · Refined

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

What reads well

  • A 1.68:1 length-to-width ratio sits in the classic pear range.
  • Face-up spread (22.20 × 13.23 mm) is typical or better for a 13.02 ct pear.
  • Excellent polish and symmetry, the top finish grades.
  • F color is in the colorless range.
  • VS1 clarity is typically eye-clean in a pear.

What deserves a closer look

  • The table 65% 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 65% table is larger than typical for a pear (53–63%). Large tables can read bright but flatter, with less fire and contrast.
Total depth · Closer look
57.4% is shallower than typical for a pear (58–64%). That spreads the stone face-up but raises the risk of windowing — a glassy, see-through center.
Length-to-width · Ideal
A 1.68:1 outline is within the classic 1.45–1.75:1 range for a pear.
Polish · Ideal
Excellent polish is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
Symmetry · Ideal
Excellent symmetry is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
Girdle · Ideal
Medium to 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
F is in the colorless range and faces up white in any metal.
Clarity · Favorable
VS1 is typically eye-clean.
Fluorescence · Ideal
None: no meaningful effect on appearance.

What to check on the exact stone

  • With a shallow 57.4% depth, can you see a glassy, see-through patch in the center?
  • 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?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Laboratory-grown
Carat
13.02 ct
Shape
Pear
Cut grade
Not given for this shape
Color
F
Clarity
VS1
Measurements
22.20 × 13.23 × 7.59 mm
Table
65%
Total depth
57.4%
Crown angle
Not given for this shape
Pavilion angle
Not given for this shape
Polish
Excellent
Symmetry
Excellent
Girdle
Medium to thick (faceted)
Culet
Pointed
Fluorescence
None

About The Carat Standard Score

How The Carat Standard reads a report