3.4ct Diamond (Cushion, 8.76×8.76mm, White) vs 4ct Diamond (Round, 10×10mm, White)
Quick summary: When looked from above (face-up position), 4ct Diamond (10×10mm, round cut) appears 14% larger than 3.4ct Diamond (8.76×8.76mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 3.4ct Diamond (cushion cut) |
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4ct Diamond (round cut) |
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white |
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| 8.76×8.76 mm | 10×10 mm | |
| actual size | ||
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Actual size is set for screen
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Ring:
Skin tone:
Ring width: 3.0 mm
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64 mm |
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Actual sizes of
3.4ct Diamond Cushion (8.76×8.76mm, White)
and
4ct Diamond Round (10×10mm, 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.
| 3.4 Ct Diamond (Cushion) | 4 Ct Diamond (Round) | |
| 8.76×8.76 mm | vs | 10×10 mm |
| 69.06 mm² | 78.54 mm² |
| 3.4ct Diamond Cushion (8.76×8.76mm) | |
| 4ct Diamond Round (10×10mm) | |
| Difference: 14% (9.48 mm²) |
4ct Diamond (Round, 10×10mm) has approx. 14% more face-up area than 3.4ct Diamond (Cushion, 8.76×8.76mm).
Popular comparisons:
- 3.4ct Diamond (Cushion, White, 8.76 x 8.76) vs. 3.4ct Diamond (Oval, White, 12.1 x 8.53)
- 2ct Diamond (Cushion, White, 7.34 x 7.34) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1ct Diamond (Cushion, White, 5.8 x 5.8) vs. 1.03ct Diamond (Round, White, 6.56 x 6.56)
- 1.56ct Diamond (Cushion, White, 6.27 x 6.27) vs. 1.66ct Diamond (Cushion, White, 6.49 x 6.47)
- 1ct Diamond (Cushion, White, 5.83 x 5.83) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.25ct Diamond (Cushion, White, 3.7 x 3.7) vs. 0.3ct Diamond (Cushion, White, 3.9 x 3.9)
- 22ct Diamond (Cushion, White, 16.33 x 16.33) vs. 22ct Diamond (Round, White, 18.21 x 18.21)
- 0.5ct Diamond (Cushion, White, 4.62 x 4.62) vs. 0.5ct Diamond (Princess, White, 4.37 x 4.37)