10ct Sapphire (Pear, 17.89×10.78mm, Blue) vs 1.6ct Diamond (Round, 7.6×7.6mm, White)
Quick summary: When looked from above (face-up position), 10ct Sapphire (17.89×10.78mm, pear cut) appears 3.1 times larger than 1.6ct Diamond (7.6×7.6mm, round cut). See below how they compare side-by-side on a ring and finger.
| 10ct Sapphire (pear cut) |
vs
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1.6ct Diamond (round cut) |
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blue |
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| 17.89×10.78 mm | 7.6×7.6 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
10ct Sapphire Pear (17.89×10.78mm, Blue)
and
1.6ct Diamond Round (7.6×7.6mm, White)
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 Diamond for a given
carat weight, because it has higher specific gravity
(4 vs. 3.52 - this means it's "heavier" compared to Diamond 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.
| 10 Ct Sapphire (Pear) | 1.6 Ct Diamond (Round) | |
| 17.89×10.78 mm | vs | 7.6×7.6 mm |
| 140.78 mm² | 45.36 mm² |
| 10ct Sapphire Pear (17.89×10.78mm) | |
| 1.6ct Diamond Round (7.6×7.6mm) | |
| Difference: 210% (95.42 mm²) |
10ct Sapphire (Pear, 17.89×10.78mm) has approx. 210% more face-up area than 1.6ct Diamond (Round, 7.6×7.6mm). In other words, it's 3.1x larger.
Popular comparisons:
- 10ct Sapphire (Pear, Blue, 17.89 x 10.78) vs. 10ct Emerald (Trillion, Green, 17.26 x 17.26)
- 10ct Sapphire (Pear, Blue, 17.89 x 10.78) vs. 10ct Emerald (Marquise, Green, 24.24 x 12.12)
- 10ct Sapphire (Pear, Blue, 17.89 x 10.78) vs. 10ct Ruby (Oval, Red, 16.29 x 10.86)
- 10ct Sapphire (Pear, Blue, 17.89 x 10.78) vs. 5ct Sapphire (Pear, Blue, 14.21 x 8.56)
- 10ct Sapphire (Pear, Blue, 17.89 x 10.78) vs. 4ct Sapphire (Pear, Blue, 13.18 x 7.94)
- 10ct Sapphire (Pear, Blue, 17.89 x 10.78) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1.93ct Sapphire (Pear, Blue, 9 x 6) vs. 3ct Sapphire (Pear, Blue, 10 x 7)
- 2ct Sapphire (Pear, Blue, 10.46 x 6.3) vs. 1.6ct Diamond (Round, White, 7.6 x 7.6)