IGI report LG700512245

4.00 ct Asscher Laboratory-Grown Diamond

93/100 · Signature

An unusually disciplined report profile.

What reads well

A 1.02:1 length-to-width ratio sits in the classic Asscher / square emerald range.
Face-up spread (8.74 × 8.56 mm) is typical or better for a 4.00 ct Asscher / square emerald.
Table 63% and depth 67.2% fall in the typical Asscher / square emerald range.
Excellent polish and symmetry, the top finish grades.
D color is in the colorless range.

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.

Table · Ideal: At 63%, the table sits within the typical 58–68% range for an Asscher / square emerald, balancing brightness with fire.
Total depth · Ideal: 67.2% 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 1.02:1 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: D is in the colorless range and faces up white in any metal.
Clarity · Ideal: Internally Flawless (IF): inclusions, if any, are only visible under magnification.
Fluorescence · Ideal: None: no meaningful effect on appearance.

With open step facets, is the center completely eye-clean without any visible dark marks?
Does this HPHT-grown diamond look neutral white beside another stone in daylight, with no gray or blue cast?
Can you show me the inscribed report number under a loupe before it is set?