The Carat Standard

GIA report 2235087177

4.00 ct Asscher Diamond

85/100 · Refined

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

What reads well

  • A 1.01:1 length-to-width ratio sits in the classic Asscher / square emerald range.
  • Face-up spread (8.77 × 8.65 mm) is typical or better for a 4.00 ct Asscher / square emerald.
  • Table 65% and depth 68.5% fall in the typical Asscher / square emerald range.
  • D color is in the colorless range.
  • VVS2 clarity: inclusions are not a practical visual factor.

What deserves a closer look

  • Very Good polish / Good symmetry is below the Excellent/Very Good standard and can soften sparkle.
  • Screening only: for this Asscher / square emerald, check images or video of the exact stone for the concentric "hall of mirrors", the windmill pattern at the corners and any see-through window.

The reading, field by field

Table · Ideal
At 65%, the table sits within the typical 58–68% range for an Asscher / square emerald, balancing brightness with fire.
Total depth · Ideal
68.5% is within the typical 60–70% range for an Asscher / square emerald, keeping weight where it contributes to face-up size and light return.
Length-to-width · Ideal
A 1.01:1 outline is within the classic 1–1.05:1 range for an Asscher / square emerald.
Polish · Favorable
Very Good polish is a fine result; the difference from Excellent is rarely visible without magnification.
Symmetry · Closer look
Good symmetry is below the grades most buyers target and can slightly soften crispness. Worth seeing the stone in person or on video.
Girdle · Ideal
Slightly thick, polished: a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal
None: no visible culet facet when viewed face-up.
Color · Ideal
D 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

  • With open step facets, is the center completely eye-clean without any visible dark marks?
  • With Very Good polish and 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
Natural
Carat
4.00 ct
Shape
Asscher
Cut grade
Not given for this shape
Color
D
Clarity
VVS2
Measurements
8.77 × 8.65 × 5.92 mm
Table
65%
Total depth
68.5%
Crown angle
Not given for this shape
Pavilion angle
Not given for this shape
Polish
Very Good
Symmetry
Good
Girdle
Slightly thick, polished
Culet
None
Fluorescence
None

About The Carat Standard Score

How The Carat Standard reads a report