1 Ct Tanzanite (Round) |
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1 Ct Sapphire (Round) |
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blue |
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| 6.37×6.37 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
1ct Tanzanite Round (6.37×6.37mm, Blue)
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 Tanzanite for a given
carat weight, because it has higher specific gravity
(4 vs. 3.3 - 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 (Round) | 1 Ct Sapphire (Round) | |
| 6.37×6.37 mm | vs | 5.98×5.98 mm |
| 31.87 mm² | 28.09 mm² |
| 1ct Tanzanite Round (6.37×6.37mm) | |
| 1ct Sapphire Round (5.98×5.98mm) | |
| Difference: 13% (3.78 mm²) |
1ct Tanzanite Round (6.37×6.37mm) has approx. 13% more face-up area than 1ct Sapphire Round (5.98×5.98mm).
Popular comparisons:
- 1ct Tanzanite (Round, Blue, 6.37 x 6.37) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Tanzanite (Round, Blue, 6.37 x 6.37) vs. 1ct Alexandrite (Round, Light Green , 6.14 x 6.14)
- 1ct Tanzanite (Round, Blue, 6.37 x 6.37) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Tanzanite (Round, Blue, 6.37 x 6.37) vs. 1ct Emerald (Round, Green, 6.37 x 6.37)
- 1ct Tanzanite (Round, Blue, 6.37 x 6.37) vs. 1ct Morganite (Round, Light Purple, 6.82 x 6.82)
- 1ct Tanzanite (Round, Blue, 6.37 x 6.37) vs. 0.2ct Diamond (Oval, Blue, 4.74 x 3.16)
- 1ct Tanzanite (Round, Blue, 6.37 x 6.37) vs. 1ct Alexandrite (Round, Dark Violet, 6.14 x 6.14)
- 1ct Tanzanite (Round, Blue, 6.37 x 6.37) vs. 1ct Emerald (Round, Green, 6.82 x 6.82)
- 1ct Tanzanite (Round, Blue, 6.37 x 6.37) vs. 1.2ct Diamond (Round, White, 6.91 x 6.91)
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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.