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1ct Diamond (Round, 6.1×6.1mm, White) vs 0.8ct Diamond (Round, 5.9×5.9mm, White)


Quick summary: When looked from above (face-up position), 1ct Diamond (6.1×6.1mm, round cut) appears 7% larger than 0.8ct Diamond (5.9×5.9mm, round cut). See below how they compare side-by-side on a ring and finger.

1ct Diamond (round cut)
vs
 0.8ct Diamond (round cut)
white
 
white
6.1×6.1 mm 5.9×5.9 mm
actual size
Actual size of 1ct Diamond (round cut, 6.1×6.1mm, White color)   Actual size of 0.8ct Diamond (round cut, 5.9×5.9mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1ct Diamond (round cut, 6.1×6.1mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.8ct Diamond (round cut, 5.9×5.9mm) 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 35%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1ct Diamond Round (6.1×6.1mm, White) and 0.8ct Diamond Round (5.9×5.9mm, 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 Ct Diamond (Round) 0.8 Ct Diamond (Round)
6.1×6.1 mm vs 5.9×5.9 mm
29.22 mm²   27.34 mm²
Face-up size outline for 1ct Diamond (6.1×6.1mm, round cut)
Face-up size outline for 0.8ct Diamond (5.9×5.9mm, round cut)
1ct Diamond Round (6.1×6.1mm)
0.8ct Diamond Round (5.9×5.9mm)
Difference: 7% (1.88 mm²)
1ct Diamond (Round, 6.1×6.1mm) has approx. 7% more face-up area than 0.8ct Diamond (Round, 5.9×5.9mm).


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