1.57 ct Oval Laboratory-Grown Diamond

What reads well

• A 1.40:1 length-to-width ratio sits in the classic oval range.
• Face-up spread (9.27 × 6.61 mm) is typical or better for a 1.57 ct oval.
• Table 59% and depth 62.5% fall in the typical oval range.
• Excellent polish and symmetry, the top finish grades.
• D color is in the colorless range.

What deserves a closer look

• Screening only: for this oval, check images or video of the exact stone for the bow-tie (a dark band across the centre) and whether both ends look even.
• Treatment status is not stated on the report. For a laboratory-grown diamond, ask whether it is as-grown or post-growth treated.

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?
• 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

1.57 ct

Shape

Oval

Color

D

Clarity

VS1

Cut

Not stated

Measurements

9.27 × 6.61 × 4.13 mm

Table

59%

Depth

62.5%

Crown angle

Not stated

Pavilion angle

Not stated

Girdle

Medium (faceted)

Culet

Pointed

Polish

Excellent

Symmetry

Excellent

Fluorescence

None