1.53 ct Round Brilliant Laboratory-Grown Diamond

What reads well

• The IGI Excellent cut grade corroborates the measured proportions.
• Excellent polish and symmetry, the top finish grades.
• G color should face up white in most settings.
• VVS2 clarity: inclusions are not a practical visual factor.
• No fluorescence: no haze risk to weigh.

What deserves a closer look

• Depth 63.6% sits outside the preferred round range.
• 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 58%, the table sits within the typical 53–59% range for a round brilliant, balancing brightness with fire.

Total depth · Closer look

63.6% is deeper than typical for a round brilliant (59.5–63%). Extra depth holds weight below the girdle, so the stone can face up smaller than its carat weight suggests.

Crown angle · Closer look

A 36.1° crown is steeper than the typical 32–36° zone. Steep crowns can add fire, but only pair well with a slightly shallower pavilion.

Pavilion angle · Ideal

41° is inside the narrow 40.5–41.3° zone where the pavilion returns light most efficiently.

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

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.

Clarity · Ideal

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

Fluorescence · Ideal

None: no meaningful effect on appearance.

Cut grade · Ideal

Excellent as issued by IGI, on IGI's own scale. The measured proportions above tell you more than the label.

What to check on the exact stone

• Does the steep crown give lively fire without making the center look darker?
• With 63.6% depth, does this stone face up smaller than a typical 1.53 ct round?
• 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

1.53 ct

Shape

Round Brilliant

Cut grade

Excellent (IGI)

Color

G

Clarity

VVS2

Measurements

7.23–7.26 × 4.61 mm

Table

58%

Total depth

63.6%

Crown angle

36.1°

Pavilion angle

41°

Polish

Excellent

Symmetry

Excellent

Girdle

Slightly thick (faceted)

Culet

Pointed

Fluorescence

None