2.50 ct Emerald Laboratory-Grown Diamond

What reads well

• Face-up spread (9.80 × 6.44 mm) is typical or better for a 2.50 ct emerald cut.
• Table 67% and depth 61.6% fall in the typical emerald cut range.
• E color is in the colorless range.
• VS1 clarity is typically eye-clean in an emerald cut.
• No fluorescence: no haze risk to weigh.

What deserves a closer look

• A 1.52:1 length-to-width ratio is outside the classic emerald cut range; the outline will look more elongated than typical.
• Screening only: for this emerald cut, check images or video of the exact stone for the "hall of mirrors" step pattern, any see-through window under the table and clean corners.
• 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 67%, the table sits within the typical 60–69% range for an emerald cut, balancing brightness with fire.

Total depth · Ideal

61.6% is within the typical 60–69% range for an emerald cut, keeping weight where it contributes to face-up size and light return.

Length-to-width · Favorable

A 1.52:1 outline is longer and slimmer than the classic 1.3–1.5:1 range for an emerald cut — a matter of taste, but worth seeing in person.

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 · Ideal

Medium: a durable girdle thickness that doesn't hide meaningful weight.

Culet · Ideal

Long: a keel-line culet, normal for elongated step and modified cuts.

Color · Ideal

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

Clarity · Favorable

VS1 is typically eye-clean, though step cuts show inclusions more readily — worth a close look at the images.

Fluorescence · Ideal

None: no meaningful effect on appearance.

What to check on the exact stone

• With open step facets, is the center completely eye-clean without any visible dark marks?
• Does this CVD diamond show any brown or gray undertone face-up in daylight?
• With Very Good symmetry, are any facet junctions visibly misaligned?
• Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin

Laboratory-grown

Carat

2.50 ct

Shape

Emerald

Cut grade

Not given for this shape

Color

E

Clarity

VS1

Measurements

9.80 × 6.44 × 3.97 mm

Table

67%

Total depth

61.6%

Crown angle

Not given for this shape

Pavilion angle

Not given for this shape

Polish

Excellent

Symmetry

Very Good

Girdle

Medium

Culet

Long

Fluorescence

None