IGI report LG772674260
3.00 ct Asscher Laboratory-Grown Diamond
76/100 · Considered
A balanced profile with a few questions to carry forward.
What reads well
- A 1.02:1 length-to-width ratio sits in the classic Asscher / square emerald range.
- Face-up spread (7.81 × 7.64 mm) is typical or better for a 3.00 ct Asscher / square emerald.
- Excellent polish and symmetry, the top finish grades.
- E color is in the colorless range.
- VVS2 clarity: inclusions are not a practical visual factor.
What deserves a closer look
- A 71.3% depth is deep for a step cut: weight sits below the girdle and the stone faces up smaller.
- A 74% table is very large for a step cut, which can flatten the hall-of-mirrors effect.
- 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.
- 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 74% table is larger than typical for an Asscher / square emerald (58–68%). Large tables can read bright but flatter, with less fire and contrast.
- Total depth · Closer look
- 71.3% is deeper than typical for an Asscher / square emerald (60–70%). Extra depth holds weight below the girdle, so the stone can face up smaller than its carat weight suggests.
- Length-to-width · Ideal
- A 1.02:1 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 · Ideal
- Excellent symmetry is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
- Girdle · Ideal
- Slightly thick: 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
- With 71.3% depth, does this stone face up smaller than a typical 3.00 ct asscher?
- Can you see straight through the center (windowing), or does it reflect clean steps?
- 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
- Laboratory-grown
- Carat
- 3.00 ct
- Shape
- Asscher
- Cut grade
- Not given for this shape
- Color
- E
- Clarity
- VVS2
- Measurements
- 7.81 × 7.64 × 5.45 mm
- Table
- 74%
- Total depth
- 71.3%
- Crown angle
- Not given for this shape
- Pavilion angle
- Not given for this shape
- Polish
- Excellent
- Symmetry
- Excellent
- Girdle
- Slightly thick
- Culet
- Pointed
- Fluorescence
- None