0.57 Ct Tourmaline (Round) |
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1 Ct Sapphire (Round) |
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violet |
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| 5.4×5.4 mm | 5.98×5.98 mm | |
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Actual size is set for screen
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64 mm |
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Actual sizes of
0.57ct Tourmaline Round (5.4×5.4mm, Violet)
and
1ct Sapphire Round (5.98×5.98mm, 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?
JamesAllen → high-quality blue Sapphires, high-end jewelry and competitive prices. Highly recommended.
Amazon → usually offers a good selection from many different vendors. Worth a check.
Face-up Size
All things being equal, Sapphire will face-up smaller than Tourmaline for a given
carat weight, because it has higher specific gravity
(4 vs. 3.1 - this means it's "heavier" compared to Tourmaline 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.
| 0.57 Ct Tourmaline (Round) | 1 Ct Sapphire (Round) | |
| 5.4×5.4 mm | vs | 5.98×5.98 mm |
| 22.9 mm² | 28.09 mm² |
| 0.57ct Tourmaline Round (5.4×5.4mm) | |
| 1ct Sapphire Round (5.98×5.98mm) | |
| Difference: 23% (5.19 mm²) |
1ct Sapphire Round (5.98×5.98mm) has approx. 23% more face-up area than 0.57ct Tourmaline Round (5.4×5.4mm).
Popular comparisons:
- 1.5ct Tourmaline (Round, Light Red, 7.45 x 7.45) vs. 1.5ct Sapphire (Round, Light Blue, 6.84 x 6.84)
- 1ct Tourmaline (Round, Light Green , 6.51 x 6.51) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 2ct Tourmaline (Round, Violet, 8.2 x 8.2) vs. 2ct Tourmaline (Oval, Violet, 10.38 x 6.92)
- 0.3ct Tourmaline (Round, Light Green , 4.36 x 4.36) vs. 0.4ct Tourmaline (Round, Light Green , 4.8 x 4.8)
- 1.5ct Tourmaline (Round, Light Red, 7.45 x 7.45) vs. 1.5ct Ruby (Oval, Red, 8.66 x 5.77)
- 1ct Tourmaline (Round, Bluish Green, 6.51 x 6.51) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Tourmaline (Round, Violet, 6.51 x 6.51) vs. 1ct Amethyst (Cushion, Light Purple, 6.41 x 6.41)
- 2ct Tourmaline (Round, Violet, 8.2 x 8.2) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2ct Tourmaline (Round, Yellow, 8.2 x 8.2) vs. 3ct Diamond (Round, Black, 9.37 x 9.37)
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.