20ct Sapphire (Oval, 20.54×13.69mm, Blue) vs 12ct Sapphire (Oval, 17.31×11.54mm, Blue)
Quick summary: When looked from above (face-up position), 20ct Sapphire (20.54×13.69mm, oval cut) appears 41% larger than 12ct Sapphire (17.31×11.54mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 20ct Sapphire (oval cut) |
vs
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12ct Sapphire (oval cut) |
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blue |
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| 20.54×13.69 mm | 17.31×11.54 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
20ct Sapphire Oval (20.54×13.69mm, Blue)
and
12ct Sapphire Oval (17.31×11.54mm, Blue)
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.
| 20 Ct Sapphire (Oval) | 12 Ct Sapphire (Oval) | |
| 20.54×13.69 mm | vs | 17.31×11.54 mm |
| 230.58 mm² | 163.8 mm² |
| 20ct Sapphire Oval (20.54×13.69mm) | |
| 12ct Sapphire Oval (17.31×11.54mm) | |
| Difference: 41% (66.78 mm²) |
20ct Sapphire (Oval, 20.54×13.69mm) has approx. 41% more face-up area than 12ct Sapphire (Oval, 17.31×11.54mm).
Popular comparisons:
- 20ct Sapphire (Oval, Blue, 20.54 x 13.69) vs. 1ct Peridot (Oval, Yellowish Green, 8.03 x 5.35)
- 20ct Sapphire (Oval, Blue, 20.54 x 13.69) vs. 20ct Ruby (Oval, Red, 20.54 x 13.69)
- 20ct Sapphire (Oval, Blue, 20.54 x 13.69) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 20ct Sapphire (Oval, Blue, 20.54 x 13.69) vs. 11ct Sapphire (Oval, Blue, 16.82 x 11.21)
- 20ct Sapphire (Oval, Blue, 20.54 x 13.69) vs. 18ct Sapphire (Oval, Blue, 19.82 x 13.21)
- 20ct Sapphire (Oval, Blue, 20.54 x 13.69) vs. 20ct Diamond (Oval, Blue, 22.04 x 14.69)
- 20ct Sapphire (Oval, Blue, 20.54 x 13.69) vs. 9ct Sapphire (Oval, Blue, 15.74 x 10.49)
- 20ct Sapphire (Oval, Blue, 20.54 x 13.69) vs. 8ct Emerald (Emerald, Green, 14.55 x 10.78)