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11ct Diamond (Cabochon, 15.89×10.59mm, White) vs 11ct Emerald (Cabochon, 17.31×11.54mm, Green)


Quick summary: When looked from above (face-up position), 11ct Emerald (17.31×11.54mm, cabochon cut) appears 19% larger than 11ct Diamond (15.89×10.59mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

11ct Diamond (cabochon cut)
vs
 11ct Emerald (cabochon cut)
white
 
green
15.89×10.59 mm 17.31×11.54 mm
actual size
Actual size of 11ct Diamond (cabochon cut, 15.89×10.59mm, White color)   Actual size of 11ct Emerald (cabochon cut, 17.31×11.54mm, Green 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 (cabochon cut, 15.89×10.59mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 11ct Emerald (cabochon cut, 17.31×11.54mm) 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
 63% vs 69%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 11ct Diamond Cabochon (15.89×10.59mm, White) and 11ct Emerald Cabochon (17.31×11.54mm, 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

All things being equal, Diamond will face-up smaller than Emerald for a given carat weight, because it has higher specific gravity (3.52 vs. 2.72 - this means it's "heavier" compared to Emerald of the same size). Face-up size also depends heavily on 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 (Cabochon) 11 Ct Emerald (Cabochon)
15.89×10.59 mm vs 17.31×11.54 mm
137.99 mm²   163.8 mm²
Face-up size outline for 11ct Emerald (17.31×11.54mm, cabochon cut)
Face-up size outline for 11ct Diamond (15.89×10.59mm, cabochon cut)
11ct Diamond Cabochon (15.89×10.59mm)
11ct Emerald Cabochon (17.31×11.54mm)
Difference: 19% (25.81 mm²)
11ct Emerald (Cabochon, 17.31×11.54mm) has approx. 19% more face-up area than 11ct Diamond (Cabochon, 15.89×10.59mm).


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