1ct Tanzanite (Marquise, 10.32×5.16mm, Blue) vs 1ct Topaz (Marquise, 10.14×5.07mm, Blue)
Quick summary: When looked from above (face-up position), 1ct Tanzanite (10.32×5.16mm, marquise cut) appears 4% larger than 1ct Topaz (10.14×5.07mm, marquise cut). See below how they compare side-by-side on a ring and finger.
| 1ct Tanzanite (marquise cut) |
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1ct Topaz (marquise cut) |
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blue |
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| 10.32×5.16 mm | 10.14×5.07 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
1ct Tanzanite Marquise (10.32×5.16mm, Blue)
and
1ct Topaz Marquise (10.14×5.07mm, 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, Topaz will face-up smaller than Tanzanite for a given
carat weight, because it has higher specific gravity
(3.53 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 Ct Tanzanite (Marquise) | 1 Ct Topaz (Marquise) | |
| 10.32×5.16 mm | vs | 10.14×5.07 mm |
| 37.81 mm² | 36.5 mm² |
| 1ct Tanzanite Marquise (10.32×5.16mm) | |
| 1ct Topaz Marquise (10.14×5.07mm) | |
| Difference: 4% (1.31 mm²) |
1ct Tanzanite (Marquise, 10.32×5.16mm) has approx. 4% more face-up area than 1ct Topaz (Marquise, 10.14×5.07mm).
Popular comparisons:
- 1ct Tanzanite (Marquise, Blue, 10.52 x 5.26) vs. 1ct Tanzanite (Marquise, Blue, 10 x 5)
- 1ct Tanzanite (Marquise, Blue, 10.52 x 5.26) vs. 1ct Ruby (Marquise, Red, 9.88 x 4.94)
- 0.6ct Tanzanite (Marquise, Blue, 8.88 x 4.44) vs. 0.9ct Tanzanite (Oval, Blue, 7.79 x 5.19)
- 2ct Tanzanite (Marquise, Blue, 13.26 x 6.63) vs. 2ct Diamond (Marquise, White, 13.08 x 6.54)
- 4.5ct Tanzanite (Marquise, Blue, 17.38 x 8.69) vs. 5ct Tanzanite (Cushion, Blue, 12 x 8)
- 1ct Tanzanite (Marquise, Blue, 10 x 5) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Tanzanite (Marquise, Blue, 10 x 5) vs. 1.5ct Tanzanite (Marquise, Blue, 12.04 x 6.02)
- 1ct Tanzanite (Marquise, Blue, 12 x 6) vs. 1ct Tanzanite (Marquise, Blue, 10 x 5)
- 1ct Tanzanite (Marquise, Blue, 12 x 6) vs. 1ct Amethyst (Pear, Violet, 9.53 x 5.74)