2.1ct Diamond (Round, 8.32×8.32mm, White) vs 3.09ct Diamond (Round, 9.47×9.47mm, White)
Quick summary: When looked from above (face-up position), 3.09ct Diamond (9.47×9.47mm, round cut) appears 30% larger than 2.1ct Diamond (8.32×8.32mm, round cut). See below how they compare side-by-side on a ring and finger.
| 2.1ct Diamond (round cut) |
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3.09ct Diamond (round cut) |
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white |
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| 8.32×8.32 mm | 9.47×9.47 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
2.1ct Diamond Round (8.32×8.32mm, White)
and
3.09ct Diamond Round (9.47×9.47mm, 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.
| 2.1 Ct Diamond (Round) | 3.09 Ct Diamond (Round) | |
| 8.32×8.32 mm | vs | 9.47×9.47 mm |
| 54.37 mm² | 70.44 mm² |
| 2.1ct Diamond Round (8.32×8.32mm) | |
| 3.09ct Diamond Round (9.47×9.47mm) | |
| Difference: 30% (16.07 mm²) |
3.09ct Diamond (Round, 9.47×9.47mm) has approx. 30% more face-up area than 2.1ct Diamond (Round, 8.32×8.32mm).
Popular comparisons:
- 2.1ct Diamond (Round, White, 8.32 x 8.32) vs. 1.2ct Diamond (Round, White, 6.91 x 6.91)
- 2.1ct Diamond (Round, White, 8.32 x 8.32) vs. 2.5ct Diamond (Emerald, White, 9.07 x 6.72)
- 2.1ct Diamond (Round, White, 8.32 x 8.32) vs. 2.75ct Sapphire (Round, Dark Bluish Green, 8.38 x 8.38)
- 2.1ct Diamond (Round, White, 8.32 x 8.32) vs. 1ct Sapphire (Round, Blue, 5.98 x 5.98)
- 2.1ct Diamond (Round, White, 8.32 x 8.32) vs. 2.7ct Ruby (Round, Red, 8.32 x 8.32)
- 2.1ct Diamond (Round, White, 8.32 x 8.32) vs. 2.41ct Diamond (Emerald, White, 9.17 x 6.31)
- 2.1ct Diamond (Round, White, 8.32 x 8.32) vs. 2.56ct Diamond (Round, White, 8.8 x 8.75)
- 2.1ct Diamond (Round, White, 8.32 x 8.32) vs. 2.1ct Diamond (Emerald, White, 8.56 x 6.34)