4.45ct Topaz (Cushion, 9.59×9.59mm, Blue) vs 3ct Ruby (Emerald, 9×7mm, Red)
Quick summary: When looked from above (face-up position), 4.45ct Topaz (9.59×9.59mm, cushion cut) appears 41% larger than 3ct Ruby (9×7mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 4.45ct Topaz (cushion cut) |
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3ct Ruby (emerald cut) |
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| 9.59×9.59 mm | 9×7 mm | |
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Actual sizes of
4.45ct Topaz Cushion (9.59×9.59mm, Blue)
and
3ct Ruby Emerald (9×7mm, Red)
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 Topaz for a given
carat weight, because it has higher specific gravity
(4 vs. 3.53 - this means it's "heavier" compared to Topaz 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.
| 4.45 Ct Topaz (Cushion) | 3 Ct Ruby (Emerald) | |
| 9.59×9.59 mm | vs | 9×7 mm |
| 82.77 mm² | 58.59 mm² |
| 4.45ct Topaz Cushion (9.59×9.59mm) | |
| 3ct Ruby Emerald (9×7mm) | |
| Difference: 41% (24.18 mm²) |
4.45ct Topaz Cushion (9.59×9.59mm) has approx. 41% more face-up area than 3ct Ruby Emerald (9×7mm).
Popular comparisons:
- 4.45ct Topaz (Cushion, Blue, 9.59 x 9.59) vs. 5ct Ruby (Cushion, Red, 9.56 x 9.56)
- 4.45ct Topaz (Cushion, Blue, 9.59 x 9.59) vs. 5ct Topaz (Cushion, Blue, 9.97 x 9.97)
- 4.45ct Topaz (Cushion, Blue, 9.59 x 9.59) vs. 5.5ct Topaz (Cushion, Blue, 10.29 x 10.29)
- 4ct Topaz (Cushion, Blue, 10 x 10) vs. 4ct Topaz (Round, Blue, 11 x 11)
- 28ct Topaz (Cushion, Blue, 17.7 x 17.7) vs. 28ct Diamond (Cushion, White, 17.69 x 17.69)
- 4ct Topaz (Cushion, Bluish Green, 9.25 x 9.25) vs. 7ct Topaz (Cushion, Bluish Green, 11.15 x 11.15)
- 2ct Topaz (Cushion, Light Bluish Green, 7.34 x 7.34) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 2.5ct Topaz (Cushion, Blue, 7.91 x 7.91) vs. 1.2ct Topaz (Cushion, Blue, 6.19 x 6.19)
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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.