IGI report LG783636220

3.71 ct Marquise Laboratory-Grown Diamond

88/100 · Refined

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

What reads well

H color in a 3.71 ct marquise may show some warmth, especially at the points.
Screening only: for this marquise, check images or video of the exact stone for the bow-tie and whether the two points line up end to end.
Treatment status is not stated on the report. For a laboratory-grown diamond, ask whether it is as-grown or post-growth treated.

Table · Ideal: At 59%, the table sits within the typical 53–63% range for a marquise, balancing brightness with fire.
Total depth · Closer look: 57.6% is shallower than typical for a marquise (58–64%). That spreads the stone face-up but raises the risk of windowing — a glassy, see-through center.
Length-to-width · Ideal: A 2.06:1 outline is within the classic 1.85–2.2:1 range for a marquise.
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: Medium to slightly thick (faceted): a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal: Pointed: no visible culet facet when viewed face-up.
Color · Favorable: H is near-colorless and faces up white in most settings, though a marquise can show a hint of warmth at the points.
Clarity · Ideal: VVS2: inclusions, if any, are only visible under magnification.
Fluorescence · Ideal: None: no meaningful effect on appearance.

With a shallow 57.6% depth, can you see a glassy, see-through patch in the center?
In a face-up video, does the bow-tie flicker as the stone tilts, or stay a fixed dark band across the center?
Will the ring setting use protective V-tip prongs or a bezel to safeguard the two delicate points?
Can you show me the inscribed report number under a loupe before it is set?