The Carat Standard

IGI report LG821640047

1.00 ct Round Brilliant Laboratory-Grown Diamond

93/100 · Signature

An unusually disciplined report profile.

What reads well

  • Table 58% and depth 60.7% are within the classic round brilliant range.
  • The IGI Ideal cut grade corroborates the measured proportions.
  • Excellent polish and symmetry, the top finish grades.
  • D color is in the colorless range.
  • VVS1 clarity: inclusions are not a practical visual factor.

What to check on the exact stone

  • Does a gray ring or glassy patch show around the center when you look straight down?
  • 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?

Report facts

Origin
Laboratory-grown
Carat
1.00 ct
Shape
Round Brilliant
Color
D
Clarity
VVS1
Cut
Ideal
Measurements
6.41–6.47 × 3.90 mm
Table
58%
Depth
60.7%
Crown angle
35.5°
Pavilion angle
40.2°
Girdle
Medium to slightly thick (faceted)
Culet
Pointed
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

How The Carat Standard reads a report