GIA report 1323678673
1.20 ct Round Brilliant Diamond
79/100 · Considered
A balanced profile with a few questions to carry forward.
What reads well
- The GIA Excellent cut grade corroborates the measured proportions.
- Excellent polish and symmetry, the top finish grades.
- G color should face up white in most settings.
- No fluorescence: no haze risk to weigh.
- Medium to slightly thick girdle balances durability and weight retention.
What deserves a closer look
- SI2 is often not eye-clean in a round brilliant; view an image or video of this exact stone.
- Crown 34° / pavilion 41.8° fall outside the pairing zone associated with strong light return.
- Clouds are referenced on the report; confirm the stone looks transparent rather than hazy.
The reading, field by field
- Table · Ideal
- At 59%, the table sits within the typical 53–59% range for a round brilliant, balancing brightness with fire.
- Total depth · Ideal
- 62.8% 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° sits in the 32–36° zone where crown angles typically balance fire and brightness.
- Pavilion angle · Closer look
- 41.8° 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 to slightly thick, faceted, 4.0%: 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 · Closer look
- SI2: inclusions may be visible to the eye. Confirm with images or video before buying.
- 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.
What to check on the exact stone
- Does the center turn dark or lose sparkle when you tilt the diamond face-up?
- Does the diamond look crisp and transparent in natural light, or is there any milky haze?
- Can you show me the inscribed report number under a loupe before it is set?
Report facts
- Origin
- Natural
- Carat
- 1.20 ct
- Shape
- Round Brilliant
- Cut grade
- Excellent (GIA)
- Color
- G
- Clarity
- SI2
- Measurements
- 6.73–6.77 × 4.24 mm
- Table
- 59%
- Total depth
- 62.8%
- Crown angle
- 34°
- Pavilion angle
- 41.8°
- Polish
- Excellent
- Symmetry
- Excellent
- Girdle
- Medium to slightly thick, faceted, 4.0%
- Culet
- None
- Fluorescence
- None