IGI report LG790695853

1.59 ct Heart Laboratory-Grown Diamond

89/100 · Refined

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

What reads well

The stated 59.6% depth does not match the measurements (about 68.5%). Check the report data.
A 0.87:1 length-to-width ratio is outside the classic heart range; the outline will look more compact than typical.
Screening only: for this heart, check images or video of the exact stone for even lobes, a crisp cleft and a point that lines up below it.
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 heart, balancing brightness with fire.
Total depth · Ideal: 59.6% is within the typical 56–63% range for a heart, keeping weight where it contributes to face-up size and light return.
Length-to-width · Favorable: A 1.15:1 outline is longer and slimmer than the classic 0.9–1.1:1 range for a heart — a matter of taste, but worth seeing in person.
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: 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: VVS2: inclusions, if any, are only visible under magnification.
Fluorescence · Ideal: None: no meaningful effect on appearance.