3ct Diamond (Trillion, 11.16×11.16mm, White) vs 3ct Topaz (Emerald, 9.6×7.11mm, Blue)
Quick summary: When looked from above (face-up position), 3ct Diamond (11.16×11.16mm, trillion cut) appears 22% larger than 3ct Topaz (9.6×7.11mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 3ct Diamond (trillion cut) |
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3ct Topaz (emerald cut) |
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white |
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| 11.16×11.16 mm | 9.6×7.11 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 Trillion (11.16×11.16mm, White)
and
3ct Topaz Emerald (9.6×7.11mm, 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 (Trillion) | 3 Ct Topaz (Emerald) | |
| 11.16×11.16 mm | vs | 9.6×7.11 mm |
| 77.22 mm² | 63.48 mm² |
| 3ct Diamond Trillion (11.16×11.16mm) | |
| 3ct Topaz Emerald (9.6×7.11mm) | |
| Difference: 22% (13.74 mm²) |
3ct Diamond (Trillion, 11.16×11.16mm) has approx. 22% more face-up area than 3ct Topaz (Emerald, 9.6×7.11mm).
Popular comparisons:
- 3ct Diamond (Trillion, White, 11.16 x 11.16) vs. 3ct Amethyst (Baguette, Light Purple, 11.46 x 7.64)
- 3ct Diamond (Trillion, White, 11.16 x 11.16) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Diamond (Trillion, White, 11.16 x 11.16) vs. 3ct Diamond (Emerald, White, 9.64 x 7.14)
- 3ct Diamond (Trillion, White, 11.16 x 11.16) vs. 2.5ct Diamond (Cabochon, White, 9.69 x 6.46)
- 0.5ct Diamond (Trillion, White, 6.14 x 6.14) vs. 0.25ct Diamond (Trillion, White, 4.87 x 4.87)
- 0.5ct Diamond (Trillion, White, 6.14 x 6.14) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 0.61ct Diamond (Trillion, Purple, 5.32 x 6.44) vs. 0.58ct Diamond (Pear, Dark Purple, 4.99 x 6.84)
- 0.3ct Diamond (Trillion, White, 5.18 x 5.18) vs. 0.4ct Diamond (Round, White, 4.79 x 4.79)