IGI report LG826679580

2.50 ct Cushion Laboratory-Grown Diamond

91/100 · Refined

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

What reads well

A 1.30:1 length-to-width ratio sits in the classic Old Mine cut range.
Face-up spread (9.41 × 7.23 mm) is typical or better for a 2.50 ct Old Mine cut.
Table 53% and depth 61.8% fall in the typical Old Mine cut range.
Excellent polish and symmetry, the top finish grades.
D color is in the colorless range.

Screening only: for this Old Mine cut, check images or video of the exact stone for the broad, chunky antique flash pattern and how the open culet looks face-up.

Table · Ideal: At 53%, the table sits within the typical 40–55% range for an Old Mine cut, balancing brightness with fire.
Total depth · Ideal: 61.8% is within the typical 60–70% range for an Old Mine cut, keeping weight where it contributes to face-up size and light return.
Length-to-width · Ideal: A 1.3:1 outline is within the classic 1–1.4:1 range for an Old Mine cut.
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 to slightly thick (faceted): a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal: Large: the open culet traditional to an Old Mine cut, seen face-up as a small circle at the center and part of its antique character.
Color · Ideal: D 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.

Does it show the broad, chunky flashes of an antique cut, and how much does the open culet show face-up?
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?