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1.51ct Diamond (Emerald, 7.67×5.68mm, White) vs 1.78ct Diamond (Round, 7.88×7.88mm, White)


Quick summary: When looked from above (face-up position), 1.78ct Diamond (7.88×7.88mm, round cut) appears 20% larger than 1.51ct Diamond (7.67×5.68mm, emerald cut). See below how they compare side-by-side on a ring and finger.

1.51ct Diamond (emerald cut)
vs
 1.78ct Diamond (round cut)
white
 
white
7.67×5.68 mm 7.88×7.88 mm
actual size
Actual size of 1.51ct Diamond (emerald cut, 7.67×5.68mm, White color)   Actual size of 1.78ct Diamond (round cut, 7.88×7.88mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.51ct Diamond (emerald cut, 7.67×5.68mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.78ct Diamond (round cut, 7.88×7.88mm) 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
 34% vs 47%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.51ct Diamond Emerald (7.67×5.68mm, White) and 1.78ct Diamond Round (7.88×7.88mm, 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.


1.51 Ct Diamond (Emerald) 1.78 Ct Diamond (Round)
7.67×5.68 mm vs 7.88×7.88 mm
40.52 mm²   48.77 mm²
Face-up size outline for 1.78ct Diamond (7.88×7.88mm, round cut)
Face-up size outline for 1.51ct Diamond (7.67×5.68mm, emerald cut)
1.51ct Diamond Emerald (7.67×5.68mm)
1.78ct Diamond Round (7.88×7.88mm)
Difference: 20% (8.25 mm²)
1.78ct Diamond (Round, 7.88×7.88mm) has approx. 20% more face-up area than 1.51ct Diamond (Emerald, 7.67×5.68mm).


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