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1.8ct Diamond (Oval, 9×7mm, White) vs 2.5ct Diamond (Oval, 10×8mm, White)


Quick summary: When looked from above (face-up position), 2.5ct Diamond (10×8mm, oval cut) appears 27% larger than 1.8ct Diamond (9×7mm, oval cut). See below how they compare side-by-side on a ring and finger.

1.8ct Diamond (oval cut)
vs
 2.5ct Diamond (oval cut)
white
 
white
9×7 mm 10×8 mm
actual size
Actual size of 1.8ct Diamond (oval cut, 9×7mm, White color)   Actual size of 2.5ct Diamond (oval cut, 10×8mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.8ct Diamond (oval cut, 9×7mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 2.5ct Diamond (oval cut, 10×8mm) 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
 42% vs 48%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.8ct Diamond Oval (9×7mm, White) and 2.5ct Diamond Oval (10×8mm, 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.


1.8 Ct Diamond (Oval) 2.5 Ct Diamond (Oval)
9×7 mm vs 10×8 mm
51.66 mm²   65.6 mm²
Face-up size outline for 2.5ct Diamond (10×8mm, oval cut)
Face-up size outline for 1.8ct Diamond (9×7mm, oval cut)
1.8ct Diamond Oval (9×7mm)
2.5ct Diamond Oval (10×8mm)
Difference: 27% (13.94 mm²)
2.5ct Diamond (Oval, 10×8mm) has approx. 27% more face-up area than 1.8ct Diamond (Oval, 9×7mm).


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