The Carat Standard

GIA report 5556359780

1.50 ct Oval Diamond

70/100 · Character

Distinctive trade-offs that should be viewed deliberately.

What reads well

  • A 1.39:1 length-to-width ratio sits in the classic oval range.
  • Excellent polish and symmetry, the top finish grades.
  • No fluorescence: no haze risk to weigh.

What deserves a closer look

  • SI2 is often not eye-clean in an oval; view an image or video of this exact stone.
  • Clouds are referenced on the report; confirm the stone looks transparent rather than hazy.
  • Face-up area is about 11% below typical ovals of this weight, suggesting hidden weight in depth.
  • A 64.7% depth is on the deep side for an oval; deeper pavilions are associated with a stronger bow-tie and hidden weight.
  • Screening only: bow-tie, windowing and contrast in an oval can only be judged from images or video of this exact stone.

What to check on the exact stone

  • With 64.7% depth, does this stone face up smaller than a typical 1.50 ct oval?
  • Does the diamond look crisp and transparent in natural light, or is there any milky haze?
  • Does the feather reach the outer edge where a setting prong could put pressure on it?
  • How dark is the bow-tie shadow across the center when viewed in normal daylight?

Report facts

Origin
Natural
Carat
1.50 ct
Shape
Oval
Color
I
Clarity
SI2
Cut
Not stated
Measurements
8.55 × 6.16 × 3.99 mm
Table
63%
Depth
64.7%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Thin to extremely thick, faceted
Culet
None
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

How The Carat Standard reads a report