IGI report LG761555252

1.00 ct Round Brilliant Laboratory-Grown Diamond

91/100 · Refined

A strong, composed candidate on paper.

What reads well

Crown 34.8° / pavilion 41.4° fall outside the pairing zone associated with strong light return.

Table · Ideal: At 56%, the table sits within the typical 53–59% range for a round brilliant, balancing brightness with fire.
Total depth · Closer look: 63.1% is deeper than typical for a round brilliant (59.5–63%). Extra depth holds weight below the girdle, so the stone can face up smaller than its carat weight suggests.
Crown angle · Ideal: 34.8° sits in the 32–36° zone where crown angles typically balance fire and brightness.
Pavilion angle · Closer look: 41.4° is steeper than the narrow 40.5–41.3° zone. Deep pavilions can leak light through the sides and darken the center.
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 (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: Internally Flawless (IF): inclusions, if any, are only visible under magnification.
Fluorescence · Ideal: None: no meaningful effect on appearance.
Cut grade · Ideal: Excellent as issued by IGI, on IGI's own scale. The measured proportions above tell you more than the label.

Does the center turn dark or lose sparkle when you tilt the diamond face-up?
With 63.1% depth, does this stone face up smaller than a typical 1.00 ct round?
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?