The Carat Standard

GIA report 2394097337

3.00 ct Round Brilliant Diamond

80/100 · 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.
  • Strong blue fluorescence can make I color face up a touch whiter in daylight.
  • I color in a round brilliant usually faces up near-colorless once set.
  • Medium to slightly thick girdle balances durability and weight retention.

What deserves a closer look

  • Crown 34.5° / 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.
  • Confirm this SI1 round brilliant is eye-clean from an image or video; the report plot shows where inclusions sit.
  • Surface-reaching characteristics are listed (knot); check their position on the plot for durability.
  • Feathers are listed: check the plot for any that reach the girdle or surface, which matters for durability.

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?
  • Does the feather reach the outer edge where a setting prong could put pressure on it?
  • Is the surface opening protected by a prong, or could it catch lint and risk chipping?

Report facts

Origin
Natural
Carat
3.00 ct
Shape
Round Brilliant
Color
I
Clarity
SI1
Cut
Excellent
Measurements
9.16–9.20 × 5.76 mm
Table
58%
Depth
62.8%
Crown angle
34.5°
Pavilion angle
41.8°
Girdle
Medium to slightly thick, faceted, 4.0%
Culet
None
Polish
Excellent
Symmetry
Excellent
Fluorescence
Strong Blue

How The Carat Standard reads a report