The Carat Standard

GIA report 1553609316

2.21 ct Oval Diamond

81/100 · Considered

A balanced profile with a few questions to carry forward.

What reads well

  • A 1.40:1 length-to-width ratio sits in the classic oval range.
  • Face-up spread (10.40 × 7.44 mm) is typical or better for a 2.21 ct oval.
  • Table 63% and depth 62.1% fall in the typical oval range.
  • Excellent polish and symmetry, the top finish grades.
  • Medium blue fluorescence can make J color face up a touch whiter in daylight.

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.
  • Feathers are listed: check the plot for any that reach the girdle or surface, which matters for durability.
  • J color in a 2.21 ct oval may show some warmth, especially at the tips.
  • 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 63%, the table sits within the typical 53–63% range for an oval, balancing brightness with fire.
Total depth · Ideal
62.1% is within the typical 58–63.5% range for an oval, keeping weight where it contributes to face-up size and light return.
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
J may show slight warmth at the tips of an oval, especially next to white metal. Yellow or rose gold tends to complement it.
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

  • 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?
  • Can I view this stone in daylight to see if the blue fluorescence helps it look whiter?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
2.21 ct
Shape
Oval
Color
J
Clarity
SI1
Cut
Not stated
Measurements
10.40 × 7.44 × 4.62 mm
Table
63%
Depth
62.1%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Medium to thick, faceted
Culet
None
Polish
Excellent
Symmetry
Excellent
Fluorescence
Medium Blue

How The Carat Standard reads a report