3ct Diamond (Pear, 13.05×7.86mm, White) vs 3.3ct Topaz (Pear, 12.9×7.77mm, Blue)
Quick summary: When looked from above (face-up position), 3ct Diamond (13.05×7.86mm, pear cut) appears 2% larger than 3.3ct Topaz (12.9×7.77mm, pear cut). See below how they compare side-by-side on a ring and finger.
| 3ct Diamond (pear cut) |
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3.3ct Topaz (pear cut) |
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white |
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| 13.05×7.86 mm | 12.9×7.77 mm | |
| actual size | ||
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Actual size is set for screen
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Ring:
Skin tone:
Ring width: 3.0 mm
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64 mm |
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Actual sizes of
3ct Diamond Pear (13.05×7.86mm, White)
and
3.3ct Topaz Pear (12.9×7.77mm, Blue)
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.
| 3 Ct Diamond (Pear) | 3.3 Ct Topaz (Pear) | |
| 13.05×7.86 mm | vs | 12.9×7.77 mm |
| 74.88 mm² | 73.17 mm² |
| 3ct Diamond Pear (13.05×7.86mm) | |
| 3.3ct Topaz Pear (12.9×7.77mm) | |
| Difference: 2% (1.71 mm²) |
3ct Diamond (Pear, 13.05×7.86mm) has approx. 2% more face-up area than 3.3ct Topaz (Pear, 12.9×7.77mm).
Popular comparisons:
- 3ct Diamond (Pear, White, 13.05 x 7.86) vs. 4ct Diamond (Pear, White, 14.36 x 8.65)
- 3ct Diamond (Pear, White, 13.05 x 7.86) vs. 3ct Emerald (Pear, Green, 13.66 x 8.23)
- 3ct Diamond (Pear, White, 13.05 x 7.86) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Diamond (Pear, White, 13.05 x 7.86) vs. 4ct Diamond (Emerald, White, 10.61 x 7.86)
- 3ct Diamond (Pear, White, 13.05 x 7.86) vs. 2.5ct Diamond (Pear, White, 12.28 x 7.4)
- 3ct Diamond (Pear, White, 13.05 x 7.86) vs. 5ct Diamond (Pear, White, 15.47 x 9.32)
- 3ct Diamond (Pear, White, 13.05 x 7.86) vs. 3ct Diamond (Cushion, White, 9.4 x 7.4)
- 3ct Diamond (Pear, White, 13.05 x 7.86) vs. 3ct Diamond (Emerald, White, 9.64 x 7.14)
Use the simulator on this page to play around with different ring and finger configurations.