1.50 ct Round Brilliant Diamond

What reads well

• No fluorescence: no haze risk to weigh.

What deserves a closer look

• SI2 is often not eye-clean in a round brilliant; view an image or video of this exact stone.
• The GIA cut grade is Good: the lab's own assessment points to less brightness and fire than its top tier.
• Crown 38.5° / pavilion 40° fall outside the pairing zone associated with strong light return.
• Clouds are referenced on the report; confirm the stone looks transparent rather than hazy.
• Depth 66.3% sits outside the preferred round range.

The reading, field by field

Table · Ideal

At 56%, the table sits within the typical 53–59% range for a round brilliant, balancing brightness with fire.

Total depth · Closer look

66.3% 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 38.5° 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 · Closer look

40° is shallower than the narrow 40.5–41.3° zone. Shallow pavilions can let light pass straight through, looking glassy.

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 · Closer look

Thick to very thick, faceted, 6.5%: a thick girdle carries weight in the rim, so the stone can face up a little smaller for its carat weight. It is durable, though.

Culet · Ideal

None: no visible culet facet when viewed face-up.

Color · Closer look

K shows visible warmth. It suits buyers who like a softer, warmer look, and pairs best with yellow or rose gold.

Clarity · Closer look

SI2: inclusions may be visible to the eye. Confirm with images or video before buying.

Fluorescence · Ideal

None: no meaningful effect on appearance.

Cut grade · Closer look

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

What to check on the exact stone

• Does a gray ring or glassy patch show around the center when you look straight down?
• With 66.3% depth, does this stone face up smaller than a typical 1.50 ct round?
• Does the diamond look crisp and transparent in natural light, or is there any milky haze?
• Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin

Natural

Carat

1.50 ct

Shape

Round Brilliant

Cut grade

Good (GIA)

Color

K

Clarity

SI2

Measurements

6.96–7.04 × 4.64 mm

Table

56%

Total depth

66.3%

Crown angle

38.5°

Pavilion angle

40°

Polish

Excellent

Symmetry

Very Good

Girdle

Thick to very thick, faceted, 6.5%

Culet

None

Fluorescence

None