The Carat Standard

GIA report 2517416193

1.50 ct Cushion Diamond

84/100 · Refined

A strong candidate on paper; confirm its light pattern in imagery.

What reads well

  • A 1.06:1 length-to-width ratio sits in the classic cushion range.
  • VVS1 clarity: inclusions are not a practical visual factor.
  • No fluorescence: no haze risk to weigh.

What deserves a closer look

  • Slightly thick to extremely thick girdle: a thick girdle carries hidden weight and can reduce face-up size.
  • I color in a 1.50 ct cushion may show some warmth, especially at the corners.
  • 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 59%, the table sits within the typical 56–66% range for a cushion, balancing brightness with fire.
Total depth · Closer look
69.5% 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 1.06:1 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 · Favorable
Very Good symmetry is a fine result; the difference from Excellent is rarely visible without magnification.
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 · Ideal
VVS1: inclusions, if any, are only visible under magnification.
Fluorescence · Ideal
None: no meaningful effect on appearance.

What to check on the exact stone

  • With 69.5% depth, does this stone face up smaller than a typical 1.50 ct cushion?
  • Does the feather reach the outer edge where a setting prong could put pressure on it?
  • Does this cushion produce broad, chunky flashes or small needle-like crushed-ice sparkle?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
1.50 ct
Shape
Cushion
Cut grade
Not given for this shape
Color
I
Clarity
VVS1
Measurements
6.51 × 6.16 × 4.28 mm
Table
59%
Total depth
69.5%
Crown angle
Not given for this shape
Pavilion angle
Not given for this shape
Polish
Excellent
Symmetry
Very Good
Girdle
Slightly thick to extremely thick, faceted
Culet
None
Fluorescence
None

About The Carat Standard Score

How The Carat Standard reads a report