The Carat Standard

GIA report 7532975553

1.00 ct Oval Diamond

85/100 · 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.
  • Excellent polish and symmetry, the top finish grades.
  • G color should face up white in most settings.

What deserves a closer look

  • Confirm this SI1 oval is eye-clean from an image or video; the report plot shows where inclusions sit.
  • A 65% depth is on the deep side for an oval; deeper pavilions are associated with a stronger bow-tie and hidden weight.
  • Feathers are listed: check the plot for any that reach the girdle or surface, which matters for durability.
  • The report notes internal graining; these can soften transparency in some stones.
  • 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.

The reading, field by field

Table · Ideal
At 60%, the table sits within the typical 53–63% range for an oval, balancing brightness with fire.
Total depth · Closer look
65% 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 · Ideal
Excellent symmetry is the top finish grade — facets are cleanly executed with nothing that would soften sparkle.
Girdle · Ideal
Medium to thick, faceted: a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal
None: no visible culet facet when viewed face-up.
Color · Favorable
G is near-colorless and faces up white in most settings, though an oval can show a hint of warmth at the tips.
Clarity · Favorable
SI1 is often eye-clean in an oval, but not always — check where the inclusions sit.
Fluorescence · Favorable
Medium Blue fluorescence is rarely visible in normal lighting.

What to check on the exact stone

  • With 65% depth, does this stone face up smaller than a typical 1.00 ct oval?
  • Does the feather reach the outer edge where a setting prong could put pressure on it?
  • Is this SI1 diamond eye-clean face-up from about 10 inches away?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
1.00 ct
Shape
Oval
Cut grade
Not given for this shape
Color
G
Clarity
SI1
Measurements
7.65 × 5.47 × 3.56 mm
Table
60%
Total depth
65%
Crown angle
Not given for this shape
Pavilion angle
Not given for this shape
Polish
Excellent
Symmetry
Excellent
Girdle
Medium to thick, faceted
Culet
None
Fluorescence
Medium Blue

About The Carat Standard Score

How The Carat Standard reads a report