0.7ct Tanzanite (Oval, 7.16×4.77mm, Blue) vs 1ct Diamond (Oval, 8.12×5.41mm, White)
Quick summary: When looked from above (face-up position), 1ct Diamond (8.12×5.41mm, oval cut) appears 29% larger than 0.7ct Tanzanite (7.16×4.77mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 0.7ct Tanzanite (oval cut) |
vs
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1ct Diamond (oval cut) |
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blue |
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| 7.16×4.77 mm | 8.12×5.41 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
0.7ct Tanzanite Oval (7.16×4.77mm, Blue)
and
1ct Diamond Oval (8.12×5.41mm, 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.
| 0.7 Ct Tanzanite (Oval) | 1 Ct Diamond (Oval) | |
| 7.16×4.77 mm | vs | 8.12×5.41 mm |
| 28.01 mm² | 36.02 mm² |
| 0.7ct Tanzanite Oval (7.16×4.77mm) | |
| 1ct Diamond Oval (8.12×5.41mm) | |
| Difference: 29% (8.01 mm²) |
1ct Diamond (Oval, 8.12×5.41mm) has approx. 29% more face-up area than 0.7ct Tanzanite (Oval, 7.16×4.77mm).
Popular comparisons:
- 0.7ct Tanzanite (Oval, Blue, 7.16 x 4.77) vs. 1.56ct Sapphire (Emerald, Blue, 7.41 x 5.49)
- 0.7ct Tanzanite (Oval, Blue, 7.16 x 4.77) vs. 2.5ct Tanzanite (Round, Blue, 8.65 x 8.65)
- 0.7ct Tanzanite (Oval, Blue, 7.16 x 4.77) vs. 0.7ct Diamond (Oval, White, 7.2 x 4.8)
- 0.7ct Tanzanite (Oval, Blue, 7.16 x 4.77) vs. 1ct Tanzanite (Round, Blue, 6.37 x 6.37)
- 0.7ct Tanzanite (Oval, Blue, 7.16 x 4.77) vs. 0.6ct Tanzanite (Pear, Blue, 7.47 x 4.5)
- 0.7ct Tanzanite (Oval, Blue, 7.16 x 4.77) vs. 1.2ct Tanzanite (Oval, Blue, 8.57 x 5.71)
- 0.7ct Tanzanite (Oval, Blue, 7.16 x 4.77) vs. 0.5ct Diamond (Oval, White, 6.44 x 4.29)
- 0.7ct Tanzanite (Oval, Blue, 7.16 x 4.77) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)