1.56 ct Square Cushion Laboratory-Grown Diamond

What reads well

• A 1.02:1 length-to-width ratio sits in the classic cushion range.
• Face-up spread (6.75 × 6.63 mm) is typical or better for a 1.56 ct cushion.
• Excellent polish and symmetry, the top finish grades.
• D color is in the colorless range.
• VVS2 clarity: inclusions are not a practical visual factor.

What deserves a closer look

• The table 68% sits outside the typical cushion range.
• 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 · Closer look

A 68% table is larger than typical for a cushion (56–66%). Large tables can read bright but flatter, with less fire and contrast.

Total depth · Ideal

65.3% is within the typical 61–69% range for a cushion, keeping weight where it contributes to face-up size and light return.

Length-to-width · Ideal

A 1.02:1 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 · Ideal

Medium to slightly thick (faceted): a durable girdle thickness that doesn't hide meaningful weight.

Culet · Ideal

Pointed: no visible culet facet when viewed face-up.

Color · Ideal

D is in the colorless range and faces up white in any metal.

Clarity · Ideal

VVS2: inclusions, if any, are only visible under magnification.

Fluorescence · Ideal

None: no meaningful effect on appearance.

What to check on the exact stone

• Does the large table look bright but flat, with less colored fire than you expected?
• Does this cushion produce broad, chunky flashes or small needle-like crushed-ice sparkle?
• 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

1.56 ct

Shape

Square Cushion

Cut grade

Not given for this shape

Color

D

Clarity

VVS2

Measurements

6.75 × 6.63 × 4.33 mm

Table

68%

Total depth

65.3%

Crown angle

Not given for this shape

Pavilion angle

Not given for this shape

Polish

Excellent

Symmetry

Excellent

Girdle

Medium to slightly thick (faceted)

Culet

Pointed

Fluorescence

None