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1.28ct Diamond (Round, 6.6×6.6mm, White) vs 0.9ct Diamond (Round, 6.2×6.2mm, White)


Quick summary: When looked from above (face-up position), 1.28ct Diamond (6.6×6.6mm, round cut) appears 13% larger than 0.9ct Diamond (6.2×6.2mm, round cut). See below how they compare side-by-side on a ring and finger.

1.28ct Diamond (round cut)
vs
 0.9ct Diamond (round cut)
white
 
white
6.6×6.6 mm 6.2×6.2 mm
actual size
Actual size of 1.28ct Diamond (round cut, 6.6×6.6mm, White color)   Actual size of 0.9ct Diamond (round cut, 6.2×6.2mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.28ct Diamond (round cut, 6.6×6.6mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.9ct Diamond (round cut, 6.2×6.2mm) 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
 40% vs 37%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.28ct Diamond Round (6.6×6.6mm, White) and 0.9ct Diamond Round (6.2×6.2mm, 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.


1.28 Ct Diamond (Round) 0.9 Ct Diamond (Round)
6.6×6.6 mm vs 6.2×6.2 mm
34.21 mm²   30.19 mm²
Face-up size outline for 1.28ct Diamond (6.6×6.6mm, round cut)
Face-up size outline for 0.9ct Diamond (6.2×6.2mm, round cut)
1.28ct Diamond Round (6.6×6.6mm)
0.9ct Diamond Round (6.2×6.2mm)
Difference: 13% (4.02 mm²)
1.28ct Diamond (Round, 6.6×6.6mm) has approx. 13% more face-up area than 0.9ct Diamond (Round, 6.2×6.2mm).


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