The Carat Standard

GIA report 6521682089

3.00 ct Cushion Diamond

58/100 · Investigate

The report asks for a more careful visual review.

What reads well

  • A 1.05:1 length-to-width ratio sits in the classic cushion range.
  • Face-up spread (8.25 × 7.82 mm) is typical or better for a 3.00 ct cushion.
  • Excellent polish and symmetry, the top finish grades.
  • No fluorescence: no haze risk to weigh.

What deserves a closer look

  • SI2 is often not eye-clean in a cushion; view an image or video of this exact stone.
  • Clouds are referenced on the report; confirm the stone looks transparent rather than hazy.
  • Surface-reaching characteristics are listed (cavity); check their position on the plot for durability.
  • Slightly thick to extremely thick girdle: a thick girdle carries hidden weight and can reduce face-up size.
  • Screening only: for this cushion, check images or video of the exact stone for the facet pattern (bold, chunky flashes or finer "crushed ice") and any dark areas under the table.

The reading, field by field

Table · Ideal
At 58%, the table sits within the typical 56–66% range for a cushion, balancing brightness with fire.
Total depth · Closer look
69.4% is deeper than typical for a cushion (61–69%). Extra depth holds weight below the girdle, so the stone can face up smaller than its carat weight suggests.
Length-to-width · Ideal
A 1.05:1 outline is within the classic 1–1.35:1 range for a cushion.
Polish · Ideal
Excellent polish is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
Symmetry · Ideal
Excellent symmetry is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
Girdle · Closer look
Slightly thick to extremely thick, faceted: a thick girdle carries weight in the rim, so the stone can face up a little smaller for its carat weight. It is durable, though.
Culet · Ideal
None: no visible culet facet when viewed face-up.
Color · Favorable
I may show slight warmth, especially next to white metal. Yellow or rose gold tends to complement it.
Clarity · Closer look
SI2: inclusions may be visible to the eye. Confirm with images or video before buying.
Fluorescence · Ideal
None: no meaningful effect on appearance.

What to check on the exact stone

  • With 69.4% depth, does this stone face up smaller than a typical 3.00 ct cushion?
  • 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?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
3.00 ct
Shape
Cushion
Cut grade
Not given for this shape
Color
I
Clarity
SI2
Measurements
8.25 × 7.82 × 5.43 mm
Table
58%
Total depth
69.4%
Crown angle
Not given for this shape
Pavilion angle
Not given for this shape
Polish
Excellent
Symmetry
Excellent
Girdle
Slightly thick to extremely thick, faceted
Culet
None
Fluorescence
None

About The Carat Standard Score

How The Carat Standard reads a report