The Carat Standard

IGI report LG763652907

1.00 ct Asscher Laboratory-Grown Diamond

92/100 · Signature

An unusually disciplined report profile.

What reads well

  • A 1.01:1 length-to-width ratio sits in the classic Asscher / square emerald range.
  • Face-up spread (5.48 × 5.41 mm) is typical or better for a 1.00 ct Asscher / square emerald.
  • Table 62% and depth 66.4% fall in the typical Asscher / square emerald range.
  • Excellent polish and symmetry, the top finish grades.
  • F color is in the colorless range.

What deserves a closer look

  • Screening only: for this Asscher / square emerald, check images or video of the exact stone for the concentric "hall of mirrors", the windmill pattern at the corners and any see-through window.

What to check on the exact stone

  • With open step facets, is the center completely eye-clean without any visible dark marks?
  • 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
Asscher
Color
F
Clarity
VVS2
Cut
Excellent
Measurements
5.48 × 5.41 × 3.59 mm
Table
62%
Depth
66.4%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Medium to slightly thick
Culet
Pointed
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

How The Carat Standard reads a report