IGI report LG762539110

0.66 ct Round Brilliant Laboratory-Grown Diamond

85/100 · Refined

A strong, composed candidate on paper.

What reads well

Crown 35.7° with pavilion 40.4° sits in the well-regarded pairing zone for brightness and fire.
D color is in the colorless range.
VS1 clarity is typically eye-clean in a round brilliant.
No fluorescence: no haze risk to weigh.
The report states no indication of post-growth treatment.

Very Good polish / Good symmetry is below the Excellent/Very Good standard and can soften sparkle.

Table · Ideal: At 59%, the table sits within the typical 53–59% range for a round brilliant, balancing brightness with fire.
Total depth · Ideal: 62.7% is within the typical 59.5–63% range for a round brilliant, keeping weight where it contributes to face-up size and light return.
Crown angle · Ideal: 35.7° sits in the 32–36° zone where crown angles typically balance fire and brightness.
Pavilion angle · Closer look: 40.4° is shallower than the narrow 40.5–41.3° zone. Shallow pavilions can let light pass straight through, looking glassy.
Polish · Favorable: Very Good polish is a fine result; the difference from Excellent is rarely visible without magnification.
Symmetry · Closer look: Good symmetry is below the grades most buyers target and can slightly soften crispness. Worth seeing the stone in person or on video.
Girdle · Favorable: Slightly thick to thick (faceted): durable, on the thicker side for a round brilliant, so a little weight sits in the rim.
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 · Favorable: VS1 is typically eye-clean.
Fluorescence · Ideal: None: no meaningful effect on appearance.
Cut grade · Favorable: Very Good as issued by IGI, on IGI's own scale. The measured proportions above tell you more than the label.

Does a gray ring or glassy patch show around the center when you look straight down?
Does this HPHT-grown diamond look neutral white beside another stone in daylight, with no gray or blue cast?
With Very Good polish and Good symmetry, are there visible misaligned facets or wheel marks?
Can you show me the inscribed report number under a loupe before it is set?