2.5ct Diamond (Round, 8.5×8.5mm, White) vs 3ct Diamond (Cushion, 10.5×8.5mm, White)
Quick summary: When looked from above (face-up position), 3ct Diamond (10.5×8.5mm, cushion cut) appears 42% larger than 2.5ct Diamond (8.5×8.5mm, round cut). See below how they compare side-by-side on a ring and finger.
| 2.5ct Diamond (round cut) |
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3ct Diamond (cushion cut) |
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white |
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| 8.5×8.5 mm | 10.5×8.5 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
2.5ct Diamond Round (8.5×8.5mm, White)
and
3ct Diamond Cushion (10.5×8.5mm, 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.
| 2.5 Ct Diamond (Round) | 3 Ct Diamond (Cushion) | |
| 8.5×8.5 mm | vs | 10.5×8.5 mm |
| 56.75 mm² | 80.33 mm² |
| 2.5ct Diamond Round (8.5×8.5mm) | |
| 3ct Diamond Cushion (10.5×8.5mm) | |
| Difference: 42% (23.58 mm²) |
3ct Diamond (Cushion, 10.5×8.5mm) has approx. 42% more face-up area than 2.5ct Diamond (Round, 8.5×8.5mm).
Popular comparisons:
- 2.5ct Diamond (Round, White, 8.5 x 8.5) vs. 3ct Diamond (Round, White, 9 x 9)
- 2.5ct Diamond (Round, White, 8.5 x 8.5) vs. 1.54ct Diamond (Oval, Bluish Green, 9.65 x 6.42)
- 2.5ct Diamond (Round, White, 8.5 x 8.5) vs. 1.25ct Diamond (Round, White, 7 x 7)
- 0.1ct Diamond (Round, White, 3.02 x 3.02) vs. 0.15ct Diamond (Round, White, 3.45 x 3.45)
- 1.5ct Diamond (Round, White, 7.5 x 7.5) vs. 2ct Diamond (Round, White, 8 x 8)
- 20ct Diamond (Round, White, 17.64 x 17.64) vs. 1ct Emerald (Round, Green, 6.82 x 6.82)
- 1ct Diamond (Round, White, 6.5 x 6.5) vs. 1.25ct Diamond (Round, White, 7 x 7)
- 0.4ct Diamond (Round, White, 4.79 x 4.79) vs. 0.5ct Diamond (Round, White, 5.16 x 5.16)