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1ct Diamond (Oval, 8×5mm, White) vs 3ct Diamond (Oval, 11.7×7.8mm, White)


Quick summary: When looked from above (face-up position), 3ct Diamond (11.7×7.8mm, oval cut) appears 2.3 times larger than 1ct Diamond (8×5mm, oval cut). See below how they compare side-by-side on a ring and finger.

1ct Diamond (oval cut)
vs
 3ct Diamond (oval cut)
white
 
white
8×5 mm 11.7×7.8 mm
actual size
Actual size of 1ct Diamond (oval cut, 8×5mm, White color)   Actual size of 3ct Diamond (oval cut, 11.7×7.8mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1ct Diamond (oval cut, 8×5mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 3ct Diamond (oval cut, 11.7×7.8mm) 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
 30% vs 47%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1ct Diamond Oval (8×5mm, White) and 3ct Diamond Oval (11.7×7.8mm, 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 Ct Diamond (Oval) 3 Ct Diamond (Oval)
8×5 mm vs 11.7×7.8 mm
32.8 mm²   74.83 mm²
Face-up size outline for 3ct Diamond (11.7×7.8mm, oval cut)
Face-up size outline for 1ct Diamond (8×5mm, oval cut)
1ct Diamond Oval (8×5mm)
3ct Diamond Oval (11.7×7.8mm)
Difference: 128% (42.03 mm²)
3ct Diamond (Oval, 11.7×7.8mm) has approx. 128% more face-up area than 1ct Diamond (Oval, 8×5mm). In other words, it's 2.28x larger.


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