The Carat Standard

GIA report 7506306030

2.20 ct Oval Laboratory-Grown Diamond

90/100 · Refined

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

What reads well

  • A 1.47:1 length-to-width ratio sits in the classic oval range.
  • Face-up spread (10.70 × 7.28 mm) is typical or better for a 2.20 ct oval.
  • Table 58% and depth 62.2% fall in the typical oval range.
  • Excellent polish and symmetry, the top finish grades.
  • D color is in the colorless range.

What deserves a closer look

  • 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.
  • Treatment status is not stated on the report. For a laboratory-grown diamond, ask whether it is as-grown or post-growth treated.

The reading, field by field

Table · Ideal
At 58%, the table sits within the typical 53–63% range for an oval, balancing brightness with fire.
Total depth · Ideal
62.2% 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 1.47:1 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 - thick (faceted): a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal
None: no visible culet facet when viewed face-up.
Color · Ideal
D is in the colorless range and faces up white in any metal.
Clarity · Ideal
Internally Flawless (IF): inclusions, if any, are only visible under magnification.
Fluorescence · Ideal
None: no meaningful effect on appearance.

What to check on the exact stone

  • 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
Laboratory-grown
Carat
2.20 ct
Shape
Oval
Color
D
Clarity
IF
Cut
Not stated
Measurements
10.70 × 7.28 × 4.53 mm
Table
58%
Depth
62.2%
Crown angle
Not stated
Pavilion angle
Not stated
Girdle
Medium to thick, faceted
Culet
None
Polish
Excellent
Symmetry
Excellent
Fluorescence
None

How The Carat Standard reads a report