0.75ct Tanzanite (Round, 5.79×5.79mm, Blue) vs 1.5ct Diamond (Round, 7.44×7.44mm, White)
Quick summary: When looked from above (face-up position), 1.5ct Diamond (7.44×7.44mm, round cut) appears 65% larger than 0.75ct Tanzanite (5.79×5.79mm, round cut). See below how they compare side-by-side on a ring and finger.
| 0.75ct Tanzanite (round cut) |
vs
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1.5ct Diamond (round cut) |
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blue |
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| 5.79×5.79 mm | 7.44×7.44 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
0.75ct Tanzanite Round (5.79×5.79mm, Blue)
and
1.5ct Diamond Round (7.44×7.44mm, 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.
| 0.75 Ct Tanzanite (Round) | 1.5 Ct Diamond (Round) | |
| 5.79×5.79 mm | vs | 7.44×7.44 mm |
| 26.33 mm² | 43.47 mm² |
| 0.75ct Tanzanite Round (5.79×5.79mm) | |
| 1.5ct Diamond Round (7.44×7.44mm) | |
| Difference: 65% (17.14 mm²) |
1.5ct Diamond (Round, 7.44×7.44mm) has approx. 65% more face-up area than 0.75ct Tanzanite (Round, 5.79×5.79mm).
Popular comparisons:
- 0.75ct Tanzanite (Round, Blue, 5.79 x 5.79) vs. 0.28ct Diamond (Round, White, 4.25 x 4.25)
- 0.75ct Tanzanite (Round, Blue, 5.79 x 5.79) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 0.75ct Tanzanite (Round, Blue, 5.79 x 5.79) vs. 0.68ct Diamond (Round, White, 5.72 x 5.72)
- 0.75ct Tanzanite (Round, Blue, 5.79 x 5.79) vs. 0.5ct Diamond (Round, White, 5.16 x 5.16)
- 0.75ct Tanzanite (Round, Blue, 5.79 x 5.79) vs. 0.57ct Diamond (Round, White, 5.39 x 5.39)
- 0.75ct Tanzanite (Round, Blue, 5.79 x 5.79) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 0.75ct Tanzanite (Round, Blue, 5.79 x 5.79) vs. 0.6ct Diamond (Round, White, 5.48 x 5.48)
- 0.75ct Tanzanite (Round, Blue, 5.79 x 5.79) vs. 0.71ct Diamond (Round, White, 5.8 x 5.8)