2.5ct Tourmaline (Trillion, 10.39×10.39mm, Light Red) vs 1ct Sapphire (Princess, 5.37×5.37mm, Blue)
Quick summary: When looked from above (face-up position), 2.5ct Tourmaline (10.39×10.39mm, trillion cut) appears 2.3 times larger than 1ct Sapphire (5.37×5.37mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 2.5ct Tourmaline (trillion cut) |
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1ct Sapphire (princess cut) |
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light red |
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| 10.39×10.39 mm | 5.37×5.37 mm | |
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Actual sizes of
2.5ct Tourmaline Trillion (10.39×10.39mm, Light Red)
and
1ct Sapphire Princess (5.37×5.37mm, 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 Tourmaline for a given
carat weight, because it has higher specific gravity
(4 vs. 3.1 - this means it's "heavier" compared to Tourmaline 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.
| 2.5 Ct Tourmaline (Trillion) | 1 Ct Sapphire (Princess) | |
| 10.39×10.39 mm | vs | 5.37×5.37 mm |
| 66.93 mm² | 28.84 mm² |
| 2.5ct Tourmaline Trillion (10.39×10.39mm) | |
| 1ct Sapphire Princess (5.37×5.37mm) | |
| Difference: 132% (38.09 mm²) |
2.5ct Tourmaline Trillion (10.39×10.39mm) has approx. 132% more face-up area than 1ct Sapphire Princess (5.37×5.37mm). In other words, it's 2.32x larger.
Popular comparisons:
- 4.93ct Tourmaline (Trillion, Red, 13.02 x 13.02) vs. 5.66ct Tourmaline (Trillion, Green, 13.64 x 13.64)
- 2ct Tourmaline (Trillion, Violet, 9.64 x 9.64) vs. 6.5ct Tourmaline (Emerald, Violet, 12.97 x 9.61)
- 2ct Tourmaline (Trillion, Violet, 8.8 x 8.6) vs. 2ct Tourmaline (Trillion, Violet, 9 x 9)
- 1ct Tourmaline (Trillion, Violet, 7.65 x 7.65) vs. 2.7ct Morganite (Trillion, Light Purple, 11.16 x 11.16)
- 2.7ct Tourmaline (Trillion, Violet, 10.66 x 10.66) vs. 3ct Ruby (Emerald, Red, 9 x 7)
- 1ct Tourmaline (Trillion, Violet, 7.65 x 7.65) vs. 1ct Diopside (Marquise, Green, 10.52 x 5.26)
- 1ct Tourmaline (Trillion, Red, 7.65 x 7.65) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Tourmaline (Trillion, Light Green , 13.08 x 13.08) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
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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.