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0.87ct Diamond (Round, 6.21×6.21mm, White) vs 0.93ct Emerald (Round, 6.65×6.65mm, Green)


Quick summary: When looked from above (face-up position), 0.93ct Emerald (6.65×6.65mm, round cut) appears 15% larger than 0.87ct Diamond (6.21×6.21mm, round cut). See below how they compare side-by-side on a ring and finger.

0.87ct Diamond (round cut)
vs
 0.93ct Emerald (round cut)
white
 
green
6.21×6.21 mm 6.65×6.65 mm
actual size
Actual size of 0.87ct Diamond (round cut, 6.21×6.21mm, White color)   Actual size of 0.93ct Emerald (round cut, 6.65×6.65mm, Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 0.87ct Diamond (round cut, 6.21×6.21mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 0.93ct Emerald (round cut, 6.65×6.65mm) 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
 37% vs 40%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.87ct Diamond Round (6.21×6.21mm, White) and 0.93ct Emerald Round (6.65×6.65mm, 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.


0.87 Ct Diamond (Round) 0.93 Ct Emerald (Round)
6.21×6.21 mm vs 6.65×6.65 mm
30.29 mm²   34.73 mm²
Face-up size outline for 0.93ct Emerald (6.65×6.65mm, round cut)
Face-up size outline for 0.87ct Diamond (6.21×6.21mm, round cut)
0.87ct Diamond Round (6.21×6.21mm)
0.93ct Emerald Round (6.65×6.65mm)
Difference: 15% (4.44 mm²)
0.93ct Emerald (Round, 6.65×6.65mm) has approx. 15% more face-up area than 0.87ct Diamond (Round, 6.21×6.21mm).


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