5ct Topaz (Cushion, 9.97×9.97mm, Blue) vs 2.5ct Tourmaline (Cushion, 8.26×8.26mm, Violet)
Quick summary: When looked from above (face-up position), 5ct Topaz (9.97×9.97mm, cushion cut) appears 46% larger than 2.5ct Tourmaline (8.26×8.26mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 5ct Topaz (cushion cut) |
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2.5ct Tourmaline (cushion cut) |
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blue |
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| 9.97×9.97 mm | 8.26×8.26 mm | |
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Actual sizes of
5ct Topaz Cushion (9.97×9.97mm, Blue)
and
2.5ct Tourmaline Cushion (8.26×8.26mm, Violet)
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, Topaz will face-up smaller than Tourmaline for a given
carat weight, because it has higher specific gravity
(3.53 vs. 3.1 - this means it's "heavier" compared to Tourmaline 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.
| 5 Ct Topaz (Cushion) | 2.5 Ct Tourmaline (Cushion) | |
| 9.97×9.97 mm | vs | 8.26×8.26 mm |
| 89.46 mm² | 61.4 mm² |
| 5ct Topaz Cushion (9.97×9.97mm) | |
| 2.5ct Tourmaline Cushion (8.26×8.26mm) | |
| Difference: 46% (28.06 mm²) |
5ct Topaz Cushion (9.97×9.97mm) has approx. 46% more face-up area than 2.5ct Tourmaline Cushion (8.26×8.26mm).
Popular comparisons:
- 5ct Topaz (Cushion, Blue, 9.97 x 9.97) vs. 15ct Topaz (Cushion, Blue, 14.38 x 14.38)
- 5ct Topaz (Cushion, Blue, 9.97 x 9.97) vs. 1ct Topaz (Round, Blue, 6.23 x 6.23)
- 5ct Topaz (Cushion, Blue, 9.97 x 9.97) vs. 1ct Citrine (Pear, Light Orange, 9.53 x 5.74)
- 5ct Topaz (Cushion, Blue, 9.97 x 9.97) vs. 1.1ct Citrine (Pear, Light Orange, 9.83 x 5.92)
- 5ct Topaz (Cushion, Blue, 9.97 x 9.97) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 5ct Topaz (Cushion, Blue, 9.97 x 9.97) vs. 0.75ct Sapphire (Round, Blue, 5.43 x 5.43)
- 5ct Topaz (Cushion, Blue, 9.97 x 9.97) vs. 1ct Tanzanite (Cabochon, Blue, 7.29 x 4.86)
- 5ct Topaz (Cushion, Blue, 9.97 x 9.97) vs. 5ct Diamond (Cushion, White, 9.96 x 9.96)
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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.