1ct Tanzanite (Marquise, 10.52×5.26mm, Blue) vs 1ct Ruby (Marquise, 9.88×4.94mm, Red)
Quick summary: When looked from above (face-up position), 1ct Tanzanite (10.52×5.26mm, marquise cut) appears 13% larger than 1ct Ruby (9.88×4.94mm, marquise cut). See below how they compare side-by-side on a ring and finger.
| 1ct Tanzanite (marquise cut) |
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1ct Ruby (marquise cut) |
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| 10.52×5.26 mm | 9.88×4.94 mm | |
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Actual sizes of
1ct Tanzanite Marquise (10.52×5.26mm, Blue)
and
1ct Ruby Marquise (9.88×4.94mm, Red)
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, Ruby 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 (Marquise) | 1 Ct Ruby (Marquise) | |
| 10.52×5.26 mm | vs | 9.88×4.94 mm |
| 39.29 mm² | 34.65 mm² |
| 1ct Tanzanite Marquise (10.52×5.26mm) | |
| 1ct Ruby Marquise (9.88×4.94mm) | |
| Difference: 13% (4.64 mm²) |
1ct Tanzanite Marquise (10.52×5.26mm) has approx. 13% more face-up area than 1ct Ruby Marquise (9.88×4.94mm).
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 Diamond (Round, White, 6.5 x 6.5)
- 1ct Tanzanite (Marquise, Blue, 10.52 x 5.26) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Tanzanite (Marquise, Blue, 10.52 x 5.26) vs. 1ct Diamond (Marquise, White, 10.38 x 5.19)
- 1ct Tanzanite (Marquise, Blue, 10.52 x 5.26) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1ct Tanzanite (Marquise, Blue, 10.52 x 5.26) vs. 1ct Sapphire (Marquise, Blue, 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)
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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.