IGI report LG830632026

1.50 ct Asscher Laboratory-Grown Diamond

89/100 · Refined

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

What reads well

A 1.04:1 length-to-width ratio sits in the classic Asscher / square emerald range.
Excellent polish and symmetry, the top finish grades.
E color is in the colorless range.
VVS2 clarity: inclusions are not a practical visual factor.
No fluorescence: no haze risk to weigh.

A 71% 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.

Table · Closer look: A 71% 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 · Ideal: 60.6% 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 1.04:1 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: Medium: 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.

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?
Does this CVD diamond show any brown or gray undertone face-up in daylight?
Can you show me the inscribed report number under a loupe before it is set?