IGI report LG778654942

2.51 ct Round Brilliant Laboratory-Grown Diamond

90/100 · Refined

A strong, composed candidate on paper.

What reads well

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 53–59% range for a round brilliant, balancing brightness with fire.
Total depth · Closer look: 59.3% is shallower than typical for a round brilliant (59.5–63%). That spreads the stone face-up but raises the risk of windowing — a glassy, see-through center.
Crown angle · Ideal: 32.8° sits in the 32–36° zone where crown angles typically balance fire and brightness.
Pavilion angle · Ideal: 40.8° is inside the narrow 40.5–41.3° zone where the pavilion returns light most efficiently.
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: Thin to medium (faceted): a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal: Pointed: no visible culet facet when viewed face-up.
Color · Ideal: F is in the colorless range and faces up white in any metal.
Clarity · Favorable: VS1 is typically eye-clean.
Fluorescence · Ideal: None: no meaningful effect on appearance.
Cut grade · Ideal: Ideal as issued by IGI, on IGI's own scale. The measured proportions above tell you more than the label.

With a shallow 59.3% depth, can you see a glassy, see-through patch in the center?
Does this CVD diamond show any brown or gray undertone face-up in daylight?
Can I see this stone in soft daylight away from store spotlights to verify its sparkle?
Can you show me the inscribed report number under a loupe before it is set?