10ct Tanzanite (Round, 13.73×13.73mm, Blue) vs 10ct Sapphire (Round, 12.88×12.88mm, Blue)
Quick summary: When looked from above (face-up position), 10ct Tanzanite (13.73×13.73mm, round cut) appears 14% larger than 10ct Sapphire (12.88×12.88mm, round cut). See below how they compare side-by-side on a ring and finger.
| 10ct Tanzanite (round cut) |
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10ct Sapphire (round cut) |
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| 13.73×13.73 mm | 12.88×12.88 mm | |
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Actual sizes of
10ct Tanzanite Round (13.73×13.73mm, Blue)
and
10ct Sapphire Round (12.88×12.88mm, 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. 3.3 - 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.
| 10 Ct Tanzanite (Round) | 10 Ct Sapphire (Round) | |
| 13.73×13.73 mm | vs | 12.88×12.88 mm |
| 148.06 mm² | 130.29 mm² |
| 10ct Tanzanite Round (13.73×13.73mm) | |
| 10ct Sapphire Round (12.88×12.88mm) | |
| Difference: 14% (17.77 mm²) |
10ct Tanzanite Round (13.73×13.73mm) has approx. 14% more face-up area than 10ct Sapphire Round (12.88×12.88mm).
Popular comparisons:
- 10ct Tanzanite (Round, Blue, 13.73 x 13.73) vs. 10ct Diamond (Round, White, 14 x 14)
- 10ct Tanzanite (Round, Blue, 13.73 x 13.73) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 10ct Tanzanite (Round, Blue, 13.73 x 13.73) vs. 10ct Emerald (Emerald, Green, 15.69 x 11.62)
- 10ct Tanzanite (Round, Blue, 13.73 x 13.73) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 10ct Tanzanite (Round, Blue, 13.73 x 13.73) vs. 1ct Emerald (Round, Green, 6.37 x 6.37)
- 10ct Tanzanite (Round, Blue, 13.73 x 13.73) vs. 2ct Emerald (Emerald, Green, 9.17 x 6.79)
- 10ct Tanzanite (Round, Blue, 13.73 x 13.73) vs. 3ct Diamond (Round, White, 9.37 x 9.37)
- 10ct Tanzanite (Round, Blue, 13.73 x 13.73) vs. 3ct Diamond (Emerald, White, 9.64 x 7.14)
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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.