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20ct Beryl (Emerald, 20.3×14.3mm, Green) vs 20ct Diamond (Emerald, 18.13×13.43mm, White)


Quick summary: When looked from above (face-up position), 20ct Beryl (20.3×14.3mm, emerald cut) appears 19% larger than 20ct Diamond (18.13×13.43mm, emerald cut). See below how they compare side-by-side on a ring and finger.

20ct Beryl (emerald cut)
vs
 20ct Diamond (emerald cut)
green
 
white
20.3×14.3 mm 18.13×13.43 mm
actual size
Actual size of 20ct Beryl (emerald cut, 20.3×14.3mm, Green 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
Green 20ct Beryl (emerald cut, 20.3×14.3mm) 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
 85% vs 80%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 20ct Beryl Emerald (20.3×14.3mm, Green) 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

All things being equal, Diamond will face-up smaller than Beryl for a given carat weight, because it has higher specific gravity (3.52 vs. 2.72 - this means it's "heavier" compared to Beryl 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.


20 Ct Beryl (Emerald) 20 Ct Diamond (Emerald)
20.3×14.3 mm vs 18.13×13.43 mm
269.97 mm²   226.44 mm²
Face-up size outline for 20ct Beryl (20.3×14.3mm, emerald cut)
Face-up size outline for 20ct Diamond (18.13×13.43mm, emerald cut)
20ct Beryl Emerald (20.3×14.3mm)
20ct Diamond Emerald (18.13×13.43mm)
Difference: 19% (43.53 mm²)
20ct Beryl (Emerald, 20.3×14.3mm) has approx. 19% more face-up area than 20ct Diamond (Emerald, 18.13×13.43mm).


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