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2.5ct Aquamarine (Cushion, 8.65×8.65mm, Light Bluish Green) vs 4.23ct Emerald (Cushion, 10.31×10.31mm, Green)


Quick summary: When looked from above (face-up position), 4.23ct Emerald (10.31×10.31mm, cushion cut) appears 42% larger than 2.5ct Aquamarine (8.65×8.65mm, cushion cut). See below how they compare side-by-side on a ring and finger.

2.5ct Aquamarine (cushion cut)
vs
 4.23ct Emerald (cushion cut)
light bluish green
 
green
8.65×8.65 mm 10.31×10.31 mm
actual size
Actual size of 2.5ct Aquamarine (cushion cut, 8.65×8.65mm, Light Bluish Green color)   Actual size of 4.23ct Emerald (cushion cut, 10.31×10.31mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Bluish Green 2.5ct Aquamarine (cushion cut, 8.65×8.65mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 4.23ct Emerald (cushion cut, 10.31×10.31mm) on a right ring and finger
Your settings
Ring
 Gold
Skin tone
 Light
Ring diameter
 16.9 mm
Ring width
 3.0 mm
Finger length
 64 mm
Finger coverage
 52% vs 62%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.5ct Aquamarine Cushion (8.65×8.65mm, Light Bluish Green) and 4.23ct Emerald Cushion (10.31×10.31mm, Green) as they would appear on a ring and finger. Adjust the ring and finger size to get an idea of how these gemstones would look on your finger.

Where to buy?

For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile

Face-up Size

Aquamarine and Emerald have the same specific gravity so their face-up size depends on the weight, shape and proportions of the cut. Face-up area is a measure of the size of the gem when viewed from above (as set in a ring). It tells you how big the gem is at the girdle plane.


2.5 Ct Aquamarine (Cushion) 4.23 Ct Emerald (Cushion)
8.65×8.65 mm vs 10.31×10.31 mm
67.34 mm²   95.67 mm²
Face-up size outline for 4.23ct Emerald (10.31×10.31mm, cushion cut)
Face-up size outline for 2.5ct Aquamarine (8.65×8.65mm, cushion cut)
2.5ct Aquamarine Cushion (8.65×8.65mm)
4.23ct Emerald Cushion (10.31×10.31mm)
Difference: 42% (28.33 mm²)
4.23ct Emerald (Cushion, 10.31×10.31mm) has approx. 42% more face-up area than 2.5ct Aquamarine (Cushion, 8.65×8.65mm).


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