The Carat Standard

GIA report 7542945038

0.71 ct Oval Diamond

87/100 · Refined

A strong candidate on paper; confirm its light pattern in imagery.

What reads well

  • A 1.40:1 length-to-width ratio sits in the classic oval range.
  • Face-up spread (7.01 × 5.02 mm) is typical or better for a 0.71 ct oval.
  • F color is in the colorless range.
  • No fluorescence: no haze risk to weigh.

What deserves a closer look

  • Clouds are referenced on the report; confirm the stone looks transparent rather than hazy.
  • Confirm this SI1 oval is eye-clean from an image or video; the report plot shows where inclusions sit.
  • 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.
  • Not stated on the report: culet. This is not assumed to be favorable, and confidence is lower.

The reading, field by field

Table · Ideal
At 62%, the table sits within the typical 53–63% range for an oval, balancing brightness with fire.
Total depth · Closer look
63.6% is deeper than typical for an oval (58–63.5%). Extra depth holds weight below the girdle, so the stone can face up smaller than its carat weight suggests and may show a stronger bow-tie.
Length-to-width · Ideal
A 1.4:1 outline is within the classic 1.3–1.5:1 range for an oval.
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
Slightly thick to thick (faceted): a durable girdle thickness that doesn't hide meaningful weight.
Color · Ideal
F is in the colorless range and faces up white in any metal.
Clarity · Favorable
SI1 is often eye-clean in an oval, but not always — check where the inclusions sit.
Fluorescence · Ideal
None: no meaningful effect on appearance.

What to check on the exact stone

  • With 63.6% depth, does this stone face up smaller than a typical 0.71 ct oval?
  • Is this SI1 diamond eye-clean face-up from about 10 inches away?
  • In a face-up video, does the bow-tie flicker as the stone tilts, or stay a fixed dark band across the center?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
0.71 ct
Shape
Oval
Color
F
Clarity
SI1
Cut
Not stated
Measurements
7.01 × 5.02 × 3.19 mm
Table
62%
Depth
63.6%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Slightly thick to thick, faceted
Culet
None
Polish
Excellent
Symmetry
Very Good
Fluorescence
None

How The Carat Standard reads a report