The Carat Standard

GIA report 1509985875

3.00 ct Asscher Diamond

51/100 · Investigate

The report asks for a more careful visual review.

What reads well

  • A 1.01:1 length-to-width ratio sits in the classic Asscher / square emerald range.
  • Face-up spread (7.90 × 7.81 mm) is typical or better for a 3.00 ct Asscher / square emerald.
  • Table 65% and depth 68.3% fall in the typical Asscher / square emerald range.
  • No fluorescence: no haze risk to weigh.

What deserves a closer look

  • SI2 in an Asscher / square emerald: the open step-cut table makes inclusions easier to see. View an image or video of this exact stone.
  • Clouds are referenced on the report; confirm the stone looks transparent rather than hazy.
  • Feathers are listed: check the plot for any that reach the girdle or surface, which matters for durability.
  • H color in a 3.00 ct Asscher / square emerald may show some warmth, especially at the corners.
  • 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
68.3% 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 · Ideal
Excellent polish is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
Symmetry · Favorable
Very Good symmetry is a fine result; the difference from Excellent is rarely visible without magnification.
Girdle · Ideal
Thick, polished: a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal
None: no visible culet facet when viewed face-up.
Color · Favorable
H is near-colorless and faces up white in most settings, though an Asscher / square emerald can show a hint of warmth at the corners.
Clarity · Closer look
SI2: inclusions may be visible to the eye. Confirm with images or video before buying.
Fluorescence · Ideal
None: no meaningful effect on appearance.

What to check on the exact stone

  • Does the diamond look crisp and transparent in natural light, or is there any milky haze?
  • Does the feather reach the outer edge where a setting prong could put pressure on it?
  • With open step facets, is the center completely eye-clean without any visible dark marks?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
3.00 ct
Shape
Asscher
Cut grade
Not given for this shape
Color
H
Clarity
SI2
Measurements
7.90 × 7.81 × 5.33 mm
Table
65%
Total depth
68.3%
Crown angle
Not given for this shape
Pavilion angle
Not given for this shape
Polish
Excellent
Symmetry
Very Good
Girdle
Thick, polished
Culet
None
Fluorescence
None

About The Carat Standard Score

How The Carat Standard reads a report