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30ct Diamond (Emerald, 20.76×15.38mm, White) vs 20ct Diamond (Emerald, 18.13×13.43mm, White)


Quick summary: When looked from above (face-up position), 30ct Diamond (20.76×15.38mm, emerald cut) appears 31% larger than 20ct Diamond (18.13×13.43mm, emerald cut). See below how they compare side-by-side on a ring and finger.

30ct Diamond (emerald cut)
vs
 20ct Diamond (emerald cut)
white
 
white
20.76×15.38 mm 18.13×13.43 mm
actual size
Actual size of 30ct Diamond (emerald cut, 20.76×15.38mm, White color)   Actual size of 20ct Diamond (emerald cut, 18.13×13.43mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 30ct Diamond (emerald cut, 20.76×15.38mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 20ct Diamond (emerald cut, 18.13×13.43mm) 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
 92% vs 80%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 30ct Diamond Emerald (20.76×15.38mm, White) and 20ct Diamond Emerald (18.13×13.43mm, 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.


30 Ct Diamond (Emerald) 20 Ct Diamond (Emerald)
20.76×15.38 mm vs 18.13×13.43 mm
296.94 mm²   226.44 mm²
Face-up size outline for 30ct Diamond (20.76×15.38mm, emerald cut)
Face-up size outline for 20ct Diamond (18.13×13.43mm, emerald cut)
30ct Diamond Emerald (20.76×15.38mm)
20ct Diamond Emerald (18.13×13.43mm)
Difference: 31% (70.5 mm²)
30ct Diamond (Emerald, 20.76×15.38mm) has approx. 31% more face-up area than 20ct Diamond (Emerald, 18.13×13.43mm).


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