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11ct Diamond (Oval, 18.05×12.03mm, White) vs 1ct Diamond (Oval, 8.12×5.41mm, White)


Quick summary: When looked from above (face-up position), 11ct Diamond (18.05×12.03mm, oval cut) appears 4.9 times larger than 1ct Diamond (8.12×5.41mm, oval cut). See below how they compare side-by-side on a ring and finger.

11ct Diamond (oval cut)
vs
 1ct Diamond (oval cut)
white
 
white
18.05×12.03 mm 8.12×5.41 mm
actual size
Actual size of 11ct Diamond (oval cut, 18.05×12.03mm, White color)   Actual size of 1ct Diamond (oval cut, 8.12×5.41mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 11ct Diamond (oval cut, 18.05×12.03mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1ct Diamond (oval cut, 8.12×5.41mm) 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
 72% vs 33%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 11ct Diamond Oval (18.05×12.03mm, White) and 1ct Diamond Oval (8.12×5.41mm, White) 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.


11 Ct Diamond (Oval) 1 Ct Diamond (Oval)
18.05×12.03 mm vs 8.12×5.41 mm
178.06 mm²   36.02 mm²
Face-up size outline for 11ct Diamond (18.05×12.03mm, oval cut)
Face-up size outline for 1ct Diamond (8.12×5.41mm, oval cut)
11ct Diamond Oval (18.05×12.03mm)
1ct Diamond Oval (8.12×5.41mm)
Difference: 394% (142.04 mm²)
11ct Diamond (Oval, 18.05×12.03mm) has approx. 394% more face-up area than 1ct Diamond (Oval, 8.12×5.41mm). In other words, it's 4.94x larger.


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