4ct Tanzanite (Marquise, 16.7×8.35mm, Blue) vs 5ct Tanzanite (Marquise, 18×9mm, Blue)
Quick summary: When looked from above (face-up position), 5ct Tanzanite (18×9mm, marquise cut) appears 16% larger than 4ct Tanzanite (16.7×8.35mm, marquise cut). See below how they compare side-by-side on a ring and finger.
| 4ct Tanzanite (marquise cut) |
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5ct Tanzanite (marquise cut) |
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| 16.7×8.35 mm | 18×9 mm | |
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Actual sizes of
4ct Tanzanite Marquise (16.7×8.35mm, Blue)
and
5ct Tanzanite Marquise (18×9mm, 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
The face-up size depends on the shape of the gem, its weight and 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.
| 4 Ct Tanzanite (Marquise) | 5 Ct Tanzanite (Marquise) | |
| 16.7×8.35 mm | vs | 18×9 mm |
| 99.01 mm² | 115.02 mm² |
| 4ct Tanzanite Marquise (16.7×8.35mm) | |
| 5ct Tanzanite Marquise (18×9mm) | |
| Difference: 16% (16.01 mm²) |
5ct Tanzanite Marquise (18×9mm) has approx. 16% more face-up area than 4ct Tanzanite Marquise (16.7×8.35mm).
Popular comparisons:
- 4ct Tanzanite (Marquise, Blue, 16.7 x 8.35) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 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, 12 x 6) vs. 1ct Tanzanite (Marquise, Blue, 10 x 5)
- 1ct Tanzanite (Marquise, Blue, 10 x 5) vs. 1.56ct Tanzanite (Marquise, Blue, 12.2 x 6.1)
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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.