The Carat Standard

GIA report 7536310248

1.00 ct Asscher Diamond

73/100 · Character

Distinctive trade-offs that should be viewed deliberately.

What reads well

  • A 1.03:1 length-to-width ratio sits in the classic Asscher / square emerald range.
  • Table 66% and depth 68.7% fall in the typical Asscher / square emerald range.
  • No fluorescence: no haze risk to weigh.
  • Medium to slightly thick girdle balances durability and weight retention.

What deserves a closer look

  • The 1.00 ct weight does not match the measurements, which suggest about 0.78 ct. Check the report data before relying on this reading.
  • SI1 in an Asscher / square emerald: the open step-cut table makes inclusions easier to see. View an image or video of this exact stone.
  • Clouds are referenced on the report; confirm the stone looks transparent rather than hazy.
  • Feathers are listed: check the plot for any that reach the girdle or surface, which matters for durability.
  • 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

  • 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?
  • With open step facets, is the center completely eye-clean without any visible dark marks?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
1.00 ct
Shape
Asscher
Color
K
Clarity
SI1
Cut
Not stated
Measurements
5.32 × 5.17 × 3.55 mm
Table
66%
Depth
68.7%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Medium to slightly thick, polished
Culet
None
Polish
Excellent
Symmetry
Very Good
Fluorescence
None

How The Carat Standard reads a report