The Carat Standard

GIA report 2528852532

1.50 ct Emerald Diamond

87/100 · Refined

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

What reads well

  • A 1.34:1 length-to-width ratio sits in the classic emerald cut range.
  • Face-up spread (7.26 × 5.43 mm) is typical or better for a 1.50 ct emerald cut.
  • G color should face up white in most settings.
  • No fluorescence: no haze risk to weigh.

What deserves a closer look

  • Surface-reaching characteristics are listed (cavity); check their position on the plot for durability.
  • Thick to very thick girdle: a thick girdle carries hidden weight and can reduce face-up size (thicker points are common in fancy shapes).
  • The report notes internal graining; these can soften transparency in some stones.
  • Screening only: for this emerald cut, check images or video of the exact stone for the "hall of mirrors" step pattern, any see-through window under the table and clean corners.

The reading, field by field

Table · Ideal
At 64%, the table sits within the typical 60–69% range for an emerald cut, balancing brightness with fire.
Total depth · Closer look
69.3% is deeper than typical for an emerald cut (60–69%). Extra depth holds weight below the girdle, so the stone can face up smaller than its carat weight suggests.
Length-to-width · Ideal
A 1.34:1 outline is within the classic 1.3–1.5:1 range for an emerald cut.
Polish · Favorable
Very Good polish is a fine result; the difference from Excellent is rarely visible without magnification.
Symmetry · Favorable
Very Good symmetry is a fine result; the difference from Excellent is rarely visible without magnification.
Girdle · Closer look
Thick to very thick, polished: a thick girdle carries weight in the rim, so the stone can face up a little smaller for its carat weight. It is durable, though.
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 emerald cut can show a hint of warmth at the corners.
Clarity · Ideal
VVS2: inclusions, if any, are only visible under magnification.
Fluorescence · Ideal
None: no meaningful effect on appearance.

What to check on the exact stone

  • With 69.3% depth, does this stone face up smaller than a typical 1.50 ct emerald?
  • Is the surface opening protected by a prong, or could it catch lint and risk chipping?
  • With open step facets, is the center completely eye-clean without any visible dark marks?
  • Can you show me the inscribed report number under a loupe before it is set?

Report facts

Origin
Natural
Carat
1.50 ct
Shape
Emerald
Cut grade
Not given for this shape
Color
G
Clarity
VVS2
Measurements
7.26 × 5.43 × 3.77 mm
Table
64%
Total depth
69.3%
Crown angle
Not given for this shape
Pavilion angle
Not given for this shape
Polish
Very Good
Symmetry
Very Good
Girdle
Thick to very thick, polished
Culet
None
Fluorescence
None

About The Carat Standard Score

How The Carat Standard reads a report