2.5ct Topaz (Oval, 10.7×7.13mm, Blue) vs 2.5ct Diamond (Emerald, 9.07×6.72mm, White)
Quick summary: When looked from above (face-up position), 2.5ct Topaz (10.7×7.13mm, oval cut) appears 10% larger than 2.5ct Diamond (9.07×6.72mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 2.5ct Topaz (oval cut) |
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2.5ct Diamond (emerald cut) |
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| 10.7×7.13 mm | 9.07×6.72 mm | |
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Actual sizes of
2.5ct Topaz Oval (10.7×7.13mm, Blue)
and
2.5ct Diamond Emerald (9.07×6.72mm, White)
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 slightly smaller than Diamond for a given
carat weight, because it has higher specific gravity
(3.53 vs. 3.52 - this means it's "slightly heavier" compared to Diamond 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.
| 2.5 Ct Topaz (Oval) | 2.5 Ct Diamond (Emerald) | |
| 10.7×7.13 mm | vs | 9.07×6.72 mm |
| 62.56 mm² | 56.68 mm² |
| 2.5ct Topaz Oval (10.7×7.13mm) | |
| 2.5ct Diamond Emerald (9.07×6.72mm) | |
| Difference: 10% (5.88 mm²) |
2.5ct Topaz Oval (10.7×7.13mm) has approx. 10% more face-up area than 2.5ct Diamond Emerald (9.07×6.72mm).
Popular comparisons:
- 2.5ct Topaz (Oval, Blue, 10.7 x 7.13) vs. 6.25ct Diamond (Round, White, 11.97 x 11.97)
- 2.5ct Topaz (Oval, Blue, 10.7 x 7.13) vs. 4ct Diamond (Emerald, White, 10.61 x 7.86)
- 2.5ct Topaz (Oval, Blue, 10.7 x 7.13) vs. 2.5ct Diamond (Oval, White, 11.01 x 7.34)
- 2.5ct Topaz (Oval, Blue, 10.7 x 7.13) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 6ct Topaz (Oval, Blue, 14.33 x 9.55) vs. 6ct Diamond (Oval, White, 14.75 x 9.83)
- 3ct Topaz (Oval, Blue, 11 x 9) vs. 4ct Topaz (Oval, Blue, 12 x 10)
- 30ct Topaz (Oval, Blue, 24.5 x 16.33) vs. 10ct Aquamarine (Emerald, Light Bluish Green, 15.69 x 11.62)
- 25ct Topaz (Oval, Blue, 23.06 x 15.37) vs. 25ct Diamond (Oval, White, 23.73 x 15.82)
Enter your screen size (diagonal)
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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.