The Carat Standard

IGI report 763630013

1.33 ct Round Brilliant Diamond

82/100 · Considered

A balanced profile with a few questions to carry forward.

What reads well

  • The IGI Excellent cut grade corroborates the measured proportions.
  • Excellent polish and symmetry, the top finish grades.
  • I color in a round brilliant usually faces up near-colorless once set.
  • 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 36.2° / pavilion 41.2° fall outside the pairing zone associated with strong light return.

What to check on the exact stone

  • Does the steep crown give lively fire without making the center look darker?
  • Is this SI2 diamond eye-clean face-up from about 10 inches away?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
1.33 ct
Shape
Round Brilliant
Color
I
Clarity
SI2
Cut
Excellent
Measurements
6.94–6.99 × 4.38 mm
Table
59%
Depth
63%
Crown angle
36.2°
Pavilion angle
41.2°
Girdle
Medium to slightly thick (faceted)
Culet
Pointed
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

How The Carat Standard reads a report