2.1ct Ruby (Round, 7.66×7.66mm, Red) vs 8.16ct Emerald (Oval, 17.36×11.57mm, Green)
Quick summary: When looked from above (face-up position), 8.16ct Emerald (17.36×11.57mm, oval cut) appears 3.6 times larger than 2.1ct Ruby (7.66×7.66mm, round cut). See below how they compare side-by-side on a ring and finger.
| 2.1ct Ruby (round cut) |
vs
|
8.16ct Emerald (oval cut) |
|
red |
|
|
| 7.66×7.66 mm | 17.36×11.57 mm | |
| actual size | ||
|
|
|
|
|
||
Actual size is set for screen
|
Ring:
Skin tone:
Ring width: 3.0 mm
|
|
64 mm |
|
|
|||||||||||||||||
|
|||||||||||||||||||||
Actual sizes of
2.1ct Ruby Round (7.66×7.66mm, Red)
and
8.16ct Emerald Oval (17.36×11.57mm, Green)
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, Ruby 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.
| 2.1 Ct Ruby (Round) | 8.16 Ct Emerald (Oval) | |
| 7.66×7.66 mm | vs | 17.36×11.57 mm |
| 46.08 mm² | 164.7 mm² |
| 2.1ct Ruby Round (7.66×7.66mm) | |
| 8.16ct Emerald Oval (17.36×11.57mm) | |
| Difference: 257% (118.62 mm²) |
8.16ct Emerald (Oval, 17.36×11.57mm) has approx. 257% more face-up area than 2.1ct Ruby (Round, 7.66×7.66mm). In other words, it's 3.57x larger.
Popular comparisons:
- 2.1ct Ruby (Round, Red, 7.66 x 7.66) vs. 2.72ct Ruby (Round, Red, 8.35 x 8.35)
- 1ct Ruby (Round, Red, 5.98 x 5.98) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 3ct Ruby (Round, Red, 8.62 x 8.62) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 0.5ct Ruby (Round, Red, 4.75 x 4.75) vs. 0.5ct Emerald (Round, Green, 5.41 x 5.41)
- 1ct Ruby (Round, Red, 5.98 x 5.98) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Ruby (Round, Red, 5.98 x 5.98) vs. 1ct Tanzanite (Round, Blue, 6.37 x 6.37)
- 1ct Ruby (Round, Red, 5.98 x 5.98) vs. 1.5ct Ruby (Round, Red, 6.84 x 6.84)
- 0.5ct Ruby (Round, Dark Red, 4.75 x 4.75) vs. 1ct Diamond (Round, White, 6.5 x 6.5)