1ct Topaz (Trillion, 7.33×7.33mm, Blue) vs 1ct Diamond (Trillion, 7.74×7.74mm, White)
Quick summary: When looked from above (face-up position), 1ct Diamond (7.74×7.74mm, trillion cut) appears 11% larger than 1ct Topaz (7.33×7.33mm, trillion cut). See below how they compare side-by-side on a ring and finger.
| 1ct Topaz (trillion cut) |
vs
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1ct Diamond (trillion cut) |
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blue |
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| 7.33×7.33 mm | 7.74×7.74 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
1ct Topaz Trillion (7.33×7.33mm, Blue)
and
1ct Diamond Trillion (7.74×7.74mm, 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.
| 1 Ct Topaz (Trillion) | 1 Ct Diamond (Trillion) | |
| 7.33×7.33 mm | vs | 7.74×7.74 mm |
| 33.31 mm² | 37.14 mm² |
| 1ct Topaz Trillion (7.33×7.33mm) | |
| 1ct Diamond Trillion (7.74×7.74mm) | |
| Difference: 11% (3.83 mm²) |
1ct Diamond (Trillion, 7.74×7.74mm) has approx. 11% more face-up area than 1ct Topaz (Trillion, 7.33×7.33mm).
Popular comparisons:
- 1ct Topaz (Trillion, Blue, 7.33 x 7.33) vs. 1ct Topaz (Princess, Bluish Green, 6 x 6)
- 1ct Topaz (Trillion, Blue, 7.33 x 7.33) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 7ct Topaz (Trillion, Bluish Green, 14.02 x 14.02) vs. 7ct Sapphire (Trillion, Bluish Green, 13.45 x 13.45)
- 9ct Topaz (Trillion, Bluish Green, 15.24 x 15.24) vs. 9ct Sapphire (Trillion, Bluish Green, 14.62 x 14.62)
- 5ct Topaz (Trillion, Bluish Green, 12.53 x 12.53) vs. 5ct Sapphire (Trillion, Bluish Green, 12.02 x 12.02)
- 6ct Topaz (Trillion, Blue, 13.32 x 13.32) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 8ct Topaz (Trillion, Bluish Green, 14.66 x 14.66) vs. 8ct Sapphire (Trillion, Bluish Green, 14.06 x 14.06)
- 2ct Topaz (Trillion, Blue, 9.23 x 9.23) vs. 1ct Topaz (Round, Blue, 6.23 x 6.23)