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10ct Emerald (Oval, 18.57×12.38mm, Green) vs 40ct Emerald (Oval, 29.49×19.66mm, Green)


Quick summary: When looked from above (face-up position), 40ct Emerald (29.49×19.66mm, oval cut) appears 2.5 times larger than 10ct Emerald (18.57×12.38mm, oval cut). See below how they compare side-by-side on a ring and finger.

10ct Emerald (oval cut)
vs
 40ct Emerald (oval cut)
green
 
green
18.57×12.38 mm 29.49×19.66 mm
actual size
Actual size of 10ct Emerald (oval cut, 18.57×12.38mm, Green color)   Actual size of 40ct Emerald (oval cut, 29.49×19.66mm, Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Green 10ct Emerald (oval cut, 18.57×12.38mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 40ct Emerald (oval cut, 29.49×19.66mm) 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
 74% vs 117%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 10ct Emerald Oval (18.57×12.38mm, Green) and 40ct Emerald Oval (29.49×19.66mm, 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

The face-up size depends on the shape of the gem, its weight and the 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.


10 Ct Emerald (Oval) 40 Ct Emerald (Oval)
18.57×12.38 mm vs 29.49×19.66 mm
188.52 mm²   475.41 mm²
Face-up size outline for 40ct Emerald (29.49×19.66mm, oval cut)
Face-up size outline for 10ct Emerald (18.57×12.38mm, oval cut)
10ct Emerald Oval (18.57×12.38mm)
40ct Emerald Oval (29.49×19.66mm)
Difference: 152% (286.89 mm²)
40ct Emerald (Oval, 29.49×19.66mm) has approx. 152% more face-up area than 10ct Emerald (Oval, 18.57×12.38mm). In other words, it's 2.52x larger.


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