1ct Tanzanite (Trillion, 7.49×7.49mm, Blue) vs 0.75ct Diamond (Trillion, 7.03×7.03mm, White)
Quick summary: When looked from above (face-up position), 1ct Tanzanite (7.49×7.49mm, trillion cut) appears 14% larger than 0.75ct Diamond (7.03×7.03mm, trillion cut). See below how they compare side-by-side on a ring and finger.
| 1ct Tanzanite (trillion cut) |
vs
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0.75ct Diamond (trillion cut) |
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blue |
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| 7.49×7.49 mm | 7.03×7.03 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 Tanzanite Trillion (7.49×7.49mm, Blue)
and
0.75ct Diamond Trillion (7.03×7.03mm, 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, Diamond will face-up smaller than Tanzanite for a given
carat weight, because it has higher specific gravity
(3.52 vs. 3.35 - this means it's "heavier" compared to Tanzanite 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 Tanzanite (Trillion) | 0.75 Ct Diamond (Trillion) | |
| 7.49×7.49 mm | vs | 7.03×7.03 mm |
| 34.78 mm² | 30.64 mm² |
| 1ct Tanzanite Trillion (7.49×7.49mm) | |
| 0.75ct Diamond Trillion (7.03×7.03mm) | |
| Difference: 14% (4.14 mm²) |
1ct Tanzanite (Trillion, 7.49×7.49mm) has approx. 14% more face-up area than 0.75ct Diamond (Trillion, 7.03×7.03mm).
Popular comparisons:
- 1ct Tanzanite (Trillion, Blue, 7.49 x 7.49) vs. 1.5ct Tanzanite (Trillion, Blue, 8.58 x 8.58)
- 1ct Tanzanite (Trillion, Blue, 7.49 x 7.49) vs. 1ct Diamond (Trillion, White, 7.74 x 7.74)
- 1ct Tanzanite (Trillion, Blue, 7.49 x 7.49) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Tanzanite (Trillion, Blue, 7.49 x 7.49) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Tanzanite (Trillion, Blue, 7.49 x 7.49) vs. 1.5ct Tanzanite (Trillion, Light Blue, 8.58 x 8.58)
- 1ct Tanzanite (Trillion, Blue, 7.49 x 7.49) vs. 1ct Tanzanite (Emerald, Blue, 6.8 x 5.04)
- 1ct Tanzanite (Trillion, Blue, 7.49 x 7.49) vs. 1ct Tanzanite (Round, Blue, 6.37 x 6.37)
- 1ct Tanzanite (Trillion, Blue, 7.49 x 7.49) vs. 1.5ct Tanzanite (Trillion, Dark Blue, 8.58 x 8.58)