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30ct Diamond (Round, 20.2×20.2mm, White) vs 30ct Diamond (Emerald, 20.76×15.38mm, White)


Quick summary: When looked from above (face-up position), 30ct Diamond (20.2×20.2mm, round cut) appears 8% larger than 30ct Diamond (20.76×15.38mm, emerald cut). See below how they compare side-by-side on a ring and finger.

30ct Diamond (round cut)
vs
 30ct Diamond (emerald cut)
white
 
white
20.2×20.2 mm 20.76×15.38 mm
actual size
Actual size of 30ct Diamond (round cut, 20.2×20.2mm, White color)   Actual size of 30ct Diamond (emerald cut, 20.76×15.38mm, 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 (round cut, 20.2×20.2mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 30ct Diamond (emerald cut, 20.76×15.38mm) 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
 120% vs 92%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 30ct Diamond Round (20.2×20.2mm, White) and 30ct Diamond Emerald (20.76×15.38mm, 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 (Round) 30 Ct Diamond (Emerald)
20.2×20.2 mm vs 20.76×15.38 mm
320.47 mm²   296.94 mm²
Face-up size outline for 30ct Diamond (20.2×20.2mm, round cut)
Face-up size outline for 30ct Diamond (20.76×15.38mm, emerald cut)
30ct Diamond Round (20.2×20.2mm)
30ct Diamond Emerald (20.76×15.38mm)
Difference: 8% (23.53 mm²)
30ct Diamond (Round, 20.2×20.2mm) has approx. 8% more face-up area than 30ct Diamond (Emerald, 20.76×15.38mm).


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