18ct Diamond (Oval, 21.27×14.18mm, White) vs 20ct Diamond (Oval, 22×14.69mm, White)
Quick summary: When looked from above (face-up position), 20ct Diamond (22×14.69mm, oval cut) appears 7% larger than 18ct Diamond (21.27×14.18mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 18ct Diamond (oval cut) |
vs
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20ct Diamond (oval cut) |
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white |
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| 21.27×14.18 mm | 22×14.69 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
18ct Diamond Oval (21.27×14.18mm, White)
and
20ct Diamond Oval (22×14.69mm, 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.
| 18 Ct Diamond (Oval) | 20 Ct Diamond (Oval) | |
| 21.27×14.18 mm | vs | 22×14.69 mm |
| 247.32 mm² | 265.01 mm² |
| 18ct Diamond Oval (21.27×14.18mm) | |
| 20ct Diamond Oval (22×14.69mm) | |
| Difference: 7% (17.69 mm²) |
20ct Diamond (Oval, 22×14.69mm) has approx. 7% more face-up area than 18ct Diamond (Oval, 21.27×14.18mm).
Popular comparisons:
- 18ct Diamond (Oval, White, 21.27 x 14.18) vs. 20ct Diamond (Oval, White, 22.04 x 14.69)
- 18ct Diamond (Oval, White, 21.27 x 14.18) vs. 20ct Diamond (Oval, White, 20.5 x 14.69)
- 18ct Diamond (Oval, White, 21.27 x 14.18) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 18ct Diamond (Oval, White, 21.27 x 14.18) vs. 20ct Diamond (Oval, White, 21 x 14.69)
- 18ct Diamond (Oval, White, 21.27 x 14.18) vs. 20ct Diamond (Oval, White, 22 x 16)
- 18ct Diamond (Oval, White, 21.27 x 14.18) vs. 20ct Sapphire (Oval, Blue, 20.54 x 13.69)
- 18ct Diamond (Oval, White, 21.27 x 14.18) vs. 1ct Diamond (Marquise, White, 10.38 x 5.19)
- 18ct Diamond (Oval, White, 21.27 x 14.18) vs. 18ct Sapphire (Oval, Blue, 19.82 x 13.21)