1.75ct Sapphire (Emerald, 7.7×5.7mm, Blue) vs 1.75ct Tanzanite (Emerald, 8.17×6.05mm, Blue)
Quick summary: When looked from above (face-up position), 1.75ct Tanzanite (8.17×6.05mm, emerald cut) appears 13% larger than 1.75ct Sapphire (7.7×5.7mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 1.75ct Sapphire (emerald cut) |
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1.75ct Tanzanite (emerald cut) |
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blue |
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| 7.7×5.7 mm | 8.17×6.05 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
1.75ct Sapphire Emerald (7.7×5.7mm, Blue)
and
1.75ct Tanzanite Emerald (8.17×6.05mm, 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, Sapphire will face-up smaller than Tanzanite for a given
carat weight, because it has higher specific gravity
(4 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.
| 1.75 Ct Sapphire (Emerald) | 1.75 Ct Tanzanite (Emerald) | |
| 7.7×5.7 mm | vs | 8.17×6.05 mm |
| 40.82 mm² | 45.97 mm² |
| 1.75ct Sapphire Emerald (7.7×5.7mm) | |
| 1.75ct Tanzanite Emerald (8.17×6.05mm) | |
| Difference: 13% (5.15 mm²) |
1.75ct Tanzanite (Emerald, 8.17×6.05mm) has approx. 13% more face-up area than 1.75ct Sapphire (Emerald, 7.7×5.7mm).
Popular comparisons:
- 1.75ct Sapphire (Emerald, Blue, 7.7 x 5.7) vs. 1.5ct Diamond (Emerald, White, 7.65 x 5.67)
- 1.75ct Sapphire (Emerald, Blue, 7.7 x 5.7) vs. 1.5ct Tanzanite (Oval, Blue, 9.23 x 6.15)
- 1.75ct Sapphire (Emerald, Blue, 7.7 x 5.7) vs. 0.94ct Diamond (Cushion, White, 5.71 x 5.71)
- 1ct Sapphire (Emerald, Blue, 7 x 5) vs. 1ct Sapphire (Oval, Blue, 7 x 5)
- 2ct Sapphire (Emerald, Blue, 8.05 x 5.96) vs. 2ct Diamond (Emerald, White, 8.42 x 6.24)
- 2ct Sapphire (Emerald, Blue, 8.05 x 5.96) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 3ct Sapphire (Emerald, Blue, 10 x 8) vs. 3ct Sapphire (Round, Blue, 8.62 x 8.62)
- 1ct Sapphire (Emerald, Blue, 6.39 x 4.73) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 4.2ct Sapphire (Emerald, Blue, 10.3 x 7.63) vs. 1.5ct Diamond (Round, White, 7.44 x 7.44)