The Carat Standard

IGI report 727566177

2.33 ct Marquise Diamond

87/100 · Refined

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

What reads well

  • A 2.15:1 length-to-width ratio sits in the classic marquise range.
  • Face-up spread (14.62 × 6.81 mm) is typical or better for a 2.33 ct marquise.
  • Excellent polish and symmetry, the top finish grades.
  • VS1 clarity is typically eye-clean in a marquise.
  • Faint fluorescence: no haze risk to weigh.

What deserves a closer look

  • I color in a 2.33 ct marquise may show some warmth, especially at the points.
  • Screening only: for this marquise, check images or video of the exact stone for the bow-tie and whether the two points line up end to end.

The reading, field by field

Table · Ideal
At 57%, the table sits within the typical 53–63% range for a marquise, balancing brightness with fire.
Total depth · Closer look
57.6% is shallower than typical for a marquise (58–64%). That spreads the stone face-up but raises the risk of windowing — a glassy, see-through center.
Length-to-width · Ideal
A 2.15:1 outline is within the classic 1.85–2.2:1 range for a marquise.
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
Slightly thick to thick (faceted): a durable girdle thickness that doesn't hide meaningful weight.
Culet · Ideal
Pointed: no visible culet facet when viewed face-up.
Color · Favorable
I may show slight warmth at the points of a marquise, especially next to white metal. Yellow or rose gold tends to complement it.
Clarity · Favorable
VS1 is typically eye-clean.
Fluorescence · Favorable
Very Slight fluorescence is rarely visible in normal lighting.
Cut grade · Favorable
Very Good as issued by IGI, on IGI's own scale. The measured proportions above tell you more than the label.

What to check on the exact stone

  • With a shallow 57.6% depth, can you see a glassy, see-through patch in the center?
  • In a face-up video, does the bow-tie flicker as the stone tilts, or stay a fixed dark band across the center?
  • Will the ring setting use protective V-tip prongs or a bezel to safeguard the two delicate points?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
2.33 ct
Shape
Marquise
Cut grade
Very Good (IGI)
Color
I
Clarity
VS1
Measurements
14.62 × 6.81 × 3.92 mm
Table
57%
Total depth
57.6%
Crown angle
Not given for this shape
Pavilion angle
Not given for this shape
Polish
Excellent
Symmetry
Excellent
Girdle
Slightly thick to thick (faceted)
Culet
Pointed
Fluorescence
Very Slight

About The Carat Standard Score

How The Carat Standard reads a report