3.45ct Ruby (Cushion, 8.45×8.45mm, Red) vs 1ct Emerald (Cushion, 6.37×6.37mm, Green)
Quick summary: When looked from above (face-up position), 3.45ct Ruby (8.45×8.45mm, cushion cut) appears 76% larger than 1ct Emerald (6.37×6.37mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 3.45ct Ruby (cushion cut) |
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1ct Emerald (cushion cut) |
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red |
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| 8.45×8.45 mm | 6.37×6.37 mm | |
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Actual sizes of
3.45ct Ruby Cushion (8.45×8.45mm, Red)
and
1ct Emerald Cushion (6.37×6.37mm, 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. 2.7 - 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.
| 3.45 Ct Ruby (Cushion) | 1 Ct Emerald (Cushion) | |
| 8.45×8.45 mm | vs | 6.37×6.37 mm |
| 64.26 mm² | 36.52 mm² |
| 3.45ct Ruby Cushion (8.45×8.45mm) | |
| 1ct Emerald Cushion (6.37×6.37mm) | |
| Difference: 76% (27.74 mm²) |
3.45ct Ruby Cushion (8.45×8.45mm) has approx. 76% more face-up area than 1ct Emerald Cushion (6.37×6.37mm).
Popular comparisons:
- 3.45ct Ruby (Cushion, Red, 8.45 x 8.45) vs. 1ct Ruby (Oval, Red, 7.56 x 5.04)
- 4ct Ruby (Cushion, Red, 8.88 x 8.88) vs. 6ct Ruby (Cushion, Red, 10.16 x 10.16)
- 0.45ct Ruby (Cushion, Red, 4.28 x 4.28) vs. 0.33ct Sapphire (Trillion, Blue, 4.86 x 4.86)
- 3ct Ruby (Cushion, Red, 8.06 x 8.06) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 3ct Ruby (Cushion, Red, 8.06 x 8.06) vs. 5ct Ruby (Cushion, Red, 9.56 x 9.56)
- 3ct Ruby (Cushion, Red, 8.06 x 8.06) vs. 3ct Diamond (Round, White, 9.37 x 9.37)
- 1ct Ruby (Cushion, Red, 5.59 x 5.59) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Ruby (Cushion, Red, 8.06 x 8.06) vs. 2ct Ruby (Round, Red, 7.53 x 7.53)
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.