1.00 ct Marquise Laboratory-Grown Diamond

What reads well

• A 1.96:1 length-to-width ratio sits in the classic marquise range.
• Face-up spread (10.29 × 5.25 mm) is typical or better for a 1.00 ct marquise.
• Table 60% and depth 61.7% fall in the typical marquise range.
• G color should face up white in most settings.
• VS1 clarity is typically eye-clean in a marquise.

What deserves a closer look

• Screening only: for this marquise, check images or video of the exact stone for the bow-tie and whether the two points line up end to end.
• Treatment status is not stated on the report. For a laboratory-grown diamond, ask whether it is as-grown or post-growth treated.

The reading, field by field

Table · Ideal

At 60%, the table sits within the typical 53–63% range for a marquise, balancing brightness with fire.

Total depth · Ideal

61.7% is within the typical 58–64% range for a marquise, keeping weight where it contributes to face-up size and light return.

Length-to-width · Ideal

A 1.96:1 outline is within the classic 1.85–2.2:1 range for a marquise.

Polish · Favorable

Very Good polish is a fine result; the difference from Excellent is rarely visible without magnification.

Symmetry · Favorable

Very Good symmetry is a fine result; the difference from Excellent is rarely visible without magnification.

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 · Favorable

G is near-colorless and faces up white in most settings, though a marquise can show a hint of warmth at the points.

Clarity · Favorable

VS1 is typically eye-clean.

Fluorescence · Ideal

None: no meaningful effect on appearance.

What to check on the exact stone

• In a face-up video, does the bow-tie flicker as the stone tilts, or stay a fixed dark band across the center?
• Will the ring setting use protective V-tip prongs or a bezel to safeguard the two delicate points?
• Does this CVD diamond show any brown or gray undertone face-up in daylight?
• 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

Marquise

Color

G

Clarity

VS1

Cut

Not stated

Measurements

10.29 × 5.25 × 3.24 mm

Table

60%

Depth

61.7%

Crown angle

Not stated

Pavilion angle

Not stated

Girdle

Medium to slightly thick (faceted)

Culet

Pointed

Polish

Very Good

Symmetry

Very Good

Fluorescence

None