12ct Emerald (Oval, 19.74×13.16mm, Green) vs 12ct Sapphire (Oval, 17.31×11.54mm, Blue)
Quick summary: When looked from above (face-up position), 12ct Emerald (19.74×13.16mm, oval cut) appears 30% larger than 12ct Sapphire (17.31×11.54mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 12ct Emerald (oval cut) |
vs
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12ct Sapphire (oval cut) |
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green |
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| 19.74×13.16 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
12ct Emerald Oval (19.74×13.16mm, Green)
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
All things being equal, Sapphire will face-up smaller than Emerald for a given
carat weight, because it has higher specific gravity
(4 vs. 2.72 - this means it's "heavier" compared to Emerald of the same size). Face-up size also depends heavily on 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.
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.
| 12 Ct Emerald (Oval) | 12 Ct Sapphire (Oval) | |
| 19.74×13.16 mm | vs | 17.31×11.54 mm |
| 213.02 mm² | 163.8 mm² |
| 12ct Emerald Oval (19.74×13.16mm) | |
| 12ct Sapphire Oval (17.31×11.54mm) | |
| Difference: 30% (49.22 mm²) |
12ct Emerald (Oval, 19.74×13.16mm) has approx. 30% more face-up area than 12ct Sapphire (Oval, 17.31×11.54mm).
Popular comparisons:
- 12ct Emerald (Oval, Green, 19.74 x 13.16) vs. 5ct Sapphire (Oval, Blue, 12.93 x 8.62)
- 12ct Emerald (Oval, Green, 19.74 x 13.16) vs. 20ct Emerald (Emerald, Green, 19.76 x 14.64)
- 12ct Emerald (Oval, Green, 19.74 x 13.16) vs. 2ct Ruby (Oval, Red, 9.53 x 6.35)
- 2.4ct Emerald (Oval, Green, 11.55 x 7.7) vs. 2.7ct Tanzanite (Cushion, Blue, 8.2 x 7.2)
- 6ct Emerald (Oval, Green, 15.68 x 10.45) vs. 6ct Ruby (Oval, Red, 13.74 x 9.16)
- 10ct Emerald (Oval, Green, 18.57 x 12.38) vs. 6ct Spinel (Oval, Red, 14.24 x 9.49)
- 20ct Emerald (Oval, Green, 23.4 x 15.6) vs. 40ct Emerald (Oval, Green, 29.49 x 19.66)
- 1.2ct Emerald (Oval, Green, 8 x 6) vs. 1.5ct Emerald (Emerald, Green, 8 x 6)