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15ct Diamond (Oval, 20.01×13.34mm, White) vs 11ct Diamond (Marquise, 23.1×11.55mm, White)


Quick summary: When looked from above (face-up position), 15ct Diamond (20.01×13.34mm, oval cut) appears 16% larger than 11ct Diamond (23.1×11.55mm, marquise cut). See below how they compare side-by-side on a ring and finger.

15ct Diamond (oval cut)
vs
 11ct Diamond (marquise cut)
white
 
white
20.01×13.34 mm 23.1×11.55 mm
actual size
Actual size of 15ct Diamond (oval cut, 20.01×13.34mm, White color)   Actual size of 11ct Diamond (marquise cut, 23.1×11.55mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 15ct Diamond (oval cut, 20.01×13.34mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 11ct Diamond (marquise cut, 23.1×11.55mm) 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
 79% vs 69%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 15ct Diamond Oval (20.01×13.34mm, White) and 11ct Diamond Marquise (23.1×11.55mm, 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.


15 Ct Diamond (Oval) 11 Ct Diamond (Marquise)
20.01×13.34 mm vs 23.1×11.55 mm
218.89 mm²   189.43 mm²
Face-up size outline for 15ct Diamond (20.01×13.34mm, oval cut)
Face-up size outline for 11ct Diamond (23.1×11.55mm, marquise cut)
15ct Diamond Oval (20.01×13.34mm)
11ct Diamond Marquise (23.1×11.55mm)
Difference: 16% (29.46 mm²)
15ct Diamond (Oval, 20.01×13.34mm) has approx. 16% more face-up area than 11ct Diamond (Marquise, 23.1×11.55mm).


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