IGI report LG786678153

1.48 ct Round Brilliant Laboratory-Grown Diamond

91/100 · Refined

A strong, composed candidate on paper.

What reads well

Crown 36.4° / pavilion 40.9° fall outside the pairing zone associated with strong light return.
Table 61% sits outside the preferred round range.

Table · Closer look: A 61% table is larger than typical for a round brilliant (53–59%). Large tables can read bright but flatter, with less fire and contrast.
Total depth · Ideal: 61.2% 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 · Closer look: A 36.4° crown is steeper than the typical 32–36° zone. Steep crowns can add fire, but only pair well with a slightly shallower pavilion.
Pavilion angle · Ideal: 40.9° 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: 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: VVS1: 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 steep crown give lively fire without making the center look darker?
Does the large table look bright but flat, with less colored fire than you expected?
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?