1 Ct Kyanite (Oval) |
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1 Ct Tanzanite (Oval) |
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blue |
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| 7.77×5.18 mm | 8.07×5.38 mm | |
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Actual size is set for screen
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Ring width: 3.0 mm
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64 mm |
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Actual sizes of
1ct Kyanite Oval (7.77×5.18mm, Blue)
and
1ct Tanzanite Oval (8.07×5.38mm, 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 and high-end gemstone jewelry, look at:
James Allen → quality gemstones (Rubies, Sapphires, Emeralds) and especially Diamonds
Blue Nile → gemstones and diamonds, birthstones jewelry
Brian Gavin → nice selection of gemstones, top-end signature diamonds
Face-up Size
All things being equal, Kyanite will face-up smaller than Tanzanite for a given
carat weight, because it has higher specific gravity
(3.68 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 Kyanite (Oval) | 1 Ct Tanzanite (Oval) | |
| 7.77×5.18 mm | vs | 8.07×5.38 mm |
| 33 mm² | 35.6 mm² |
| 1ct Kyanite Oval (7.77×5.18mm) | |
| 1ct Tanzanite Oval (8.07×5.38mm) | |
| Difference: 8% (2.6 mm²) |
1ct Tanzanite Oval (8.07×5.38mm) has approx. 8% more face-up area than 1ct Kyanite Oval (7.77×5.18mm).
Popular comparisons:
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 1ct Tanzanite (Oval, Light Blue, 7 x 5.38)
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 2ct Tanzanite (Oval, Blue, 10.16 x 6.77)
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 1ct Diamond (Oval, White, 8.12 x 5.41)
- 1ct Kyanite (Oval, Blue, 8 x 6) vs. 1ct Kyanite (Marquise, Blue, 10 x 5)
- 1ct Kyanite (Oval, Bluish Green, 8.14 x 6.14) vs. 1ct Alexandrite (Round, Bluish Green, 6.14 x 6.14)
- 1ct Kyanite (Oval, Blue, 8.14 x 6.14) vs. 1ct Alexandrite (Round, Light Green , 6.14 x 6.14)
- 1ct Kyanite (Oval, Dark Bluish Green, 8.14 x 6.14) vs. 1ct Alexandrite (Round, Bluish Green, 6.14 x 6.14)
- 10ct Kyanite (Oval, Blue, 16.76 x 11.17) vs. 1ct Tanzanite (Oval, Blue, 8.07 x 5.38)
Enter your screen size (diagonal)
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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.