GIA report 6555520407

1.50 ct Round Brilliant Diamond

92/100 · Signature

An unusually disciplined report profile.

What reads well

Crown 34.5° with pavilion 40.6° sits in the well-regarded pairing zone for brightness and fire.
Table 59% and depth 61.6% are within the classic round brilliant range.
The GIA Excellent cut grade corroborates the measured proportions.
G color should face up white in most settings.
No fluorescence: no haze risk to weigh.

The report notes internal graining; these can soften transparency in some stones.

Table · Ideal: At 59%, the table sits within the typical 53–59% range for a round brilliant, balancing brightness with fire.
Total depth · Ideal: 61.6% 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: 34.5° sits in the 32–36° zone where crown angles typically balance fire and brightness.
Pavilion angle · Ideal: 40.6° 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 · Favorable: Very Good symmetry is a fine result; the difference from Excellent is rarely visible without magnification.
Girdle · Ideal: Medium to slightly thick, faceted, 4.5%: a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal: None: no visible culet facet when viewed face-up.
Color · Favorable: G is near-colorless and faces up white in most settings.
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 GIA, on GIA's own scale. The measured proportions above tell you more than the label.

Does the feather reach the outer edge where a setting prong could put pressure on it?
With Very Good symmetry, are any facet junctions visibly misaligned?
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?