3.5ct Sapphire (Marquise, 14.76×7.38mm, Blue) vs 3.5ct Topaz (Marquise, 15.4×7.7mm, Blue)
Quick summary: When looked from above (face-up position), 3.5ct Topaz (15.4×7.7mm, marquise cut) appears 9% larger than 3.5ct Sapphire (14.76×7.38mm, marquise cut). See below how they compare side-by-side on a ring and finger.
| 3.5ct Sapphire (marquise cut) |
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3.5ct Topaz (marquise cut) |
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blue |
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| 14.76×7.38 mm | 15.4×7.7 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
3.5ct Sapphire Marquise (14.76×7.38mm, Blue)
and
3.5ct Topaz Marquise (15.4×7.7mm, 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 Topaz for a given
carat weight, because it has higher specific gravity
(4 vs. 3.53 - this means it's "heavier" compared to Topaz 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.
| 3.5 Ct Sapphire (Marquise) | 3.5 Ct Topaz (Marquise) | |
| 14.76×7.38 mm | vs | 15.4×7.7 mm |
| 77.34 mm² | 84.19 mm² |
| 3.5ct Sapphire Marquise (14.76×7.38mm) | |
| 3.5ct Topaz Marquise (15.4×7.7mm) | |
| Difference: 9% (6.85 mm²) |
3.5ct Topaz (Marquise, 15.4×7.7mm) has approx. 9% more face-up area than 3.5ct Sapphire (Marquise, 14.76×7.38mm).
Popular comparisons:
- 1ct Sapphire (Marquise, Blue, 10 x 5) vs. 1ct Sapphire (Oval, Blue, 10 x 5)
- 1.5ct Sapphire (Marquise, Blue, 11.3 x 5.65) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 1ct Sapphire (Marquise, Dark Green, 10 x 5) vs. 1ct Sapphire (Round, Dark Green, 6 x 6)
- 2ct Sapphire (Marquise, Blue, 12.44 x 6.22) vs. 2ct Diamond (Marquise, White, 13.08 x 6.54)
- 1ct Sapphire (Marquise, Dark Green, 10 x 5) vs. 1ct Sapphire (Pear, Dark Green, 8 x 5)
- 0.1ct Sapphire (Marquise, Blue, 4.58 x 2.29) vs. 0.18ct Emerald (Princess, Green, 3.46 x 3.46)
- 2ct Sapphire (Marquise, Blue, 12.44 x 6.22) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 1.8ct Sapphire (Marquise, White, 12 x 6) vs. 2ct Zircon (Marquise, White, 11.82 x 5.91)
- 0.13ct Sapphire (Marquise, Green, 5 x 2.5) vs. 0.05ct Chrysoberyl (Marquise, Yellow, 3.74 x 1.87)