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4ct Diamond (Round, 10×10mm, White) vs 1.2ct Diamond (Oval, 8×6mm, White)


Quick summary: When looked from above (face-up position), 4ct Diamond (10×10mm, round cut) appears 100% larger than 1.2ct Diamond (8×6mm, oval cut). See below how they compare side-by-side on a ring and finger.

4ct Diamond (round cut)
vs
 1.2ct Diamond (oval cut)
white
 
white
10×10 mm 8×6 mm
actual size
Actual size of 4ct Diamond (round cut, 10×10mm, White color)   Actual size of 1.2ct Diamond (oval cut, 8×6mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 4ct Diamond (round cut, 10×10mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 1.2ct Diamond (oval cut, 8×6mm) 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
 60% vs 36%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 4ct Diamond Round (10×10mm, White) and 1.2ct Diamond Oval (8×6mm, 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.


4 Ct Diamond (Round) 1.2 Ct Diamond (Oval)
10×10 mm vs 8×6 mm
78.54 mm²   39.36 mm²
Face-up size outline for 4ct Diamond (10×10mm, round cut)
Face-up size outline for 1.2ct Diamond (8×6mm, oval cut)
4ct Diamond Round (10×10mm)
1.2ct Diamond Oval (8×6mm)
Difference: 100% (39.18 mm²)
4ct Diamond (Round, 10×10mm) has approx. 100% more face-up area than 1.2ct Diamond (Oval, 8×6mm).


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