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15ct Diamond (Emerald, 16.48×12.21mm, White) vs 15ct Emerald (Emerald, 17.96×13.3mm, Green)


Quick summary: When looked from above (face-up position), 15ct Emerald (17.96×13.3mm, emerald cut) appears 19% larger than 15ct Diamond (16.48×12.21mm, emerald cut). See below how they compare side-by-side on a ring and finger.

15ct Diamond (emerald cut)
vs
15ct Emerald (emerald cut)
white
 
green
16.48×12.21 mm 17.96×13.3 mm
actual size
Actual size of 15ct Diamond (emerald cut, 16.48×12.21mm, White color)   Actual size of 15ct Emerald (emerald cut, 17.96×13.3mm, Green 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 (emerald cut, 16.48×12.21mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 15ct Emerald (emerald cut, 17.96×13.3mm) 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
73% vs 79%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 15ct Diamond Emerald (16.48×12.21mm, White) and 15ct Emerald Emerald (17.96×13.3mm, 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.


15 Ct Diamond (Emerald) 15 Ct Emerald (Emerald)
16.48×12.21 mm vs 17.96×13.3 mm
187.14 mm²   222.15 mm²
Face-up size outline for 15ct Emerald (17.96×13.3mm, emerald cut)
Face-up size outline for 15ct Diamond (16.48×12.21mm, emerald cut)
15ct Diamond Emerald (16.48×12.21mm)
15ct Emerald Emerald (17.96×13.3mm)
Difference: 19% (35.01 mm²)
15ct Emerald (Emerald, 17.96×13.3mm) has approx. 19% more face-up area than 15ct Diamond (Emerald, 16.48×12.21mm).


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