4ct Quartz (Princess, 9.79×9.79mm, White) vs 1.65ct Sapphire (Round, 7.06×7.06mm, Light Blue)
Quick summary: When looked from above (face-up position), 4ct Quartz (9.79×9.79mm, princess cut) appears 2.5 times larger than 1.65ct Sapphire (7.06×7.06mm, round cut). See below how they compare side-by-side on a ring and finger.
| 4ct Quartz (princess cut) |
vs
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1.65ct Sapphire (round cut) |
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white |
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| 9.79×9.79 mm | 7.06×7.06 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
4ct Quartz Princess (9.79×9.79mm, White)
and
1.65ct Sapphire Round (7.06×7.06mm, Light 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 Quartz for a given
carat weight, because it has higher specific gravity
(4 vs. 2.65 - this means it's "heavier" compared to Quartz 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.
| 4 Ct Quartz (Princess) | 1.65 Ct Sapphire (Round) | |
| 9.79×9.79 mm | vs | 7.06×7.06 mm |
| 95.84 mm² | 39.15 mm² |
| 4ct Quartz Princess (9.79×9.79mm) | |
| 1.65ct Sapphire Round (7.06×7.06mm) | |
| Difference: 145% (56.69 mm²) |
4ct Quartz (Princess, 9.79×9.79mm) has approx. 145% more face-up area than 1.65ct Sapphire (Round, 7.06×7.06mm). In other words, it's 2.45x larger.
Popular comparisons:
- 22ct Quartz (Princess, Gray, 17.28 x 17.28) vs. 0.71ct Tourmaline (Princess, Dark Green, 5.22 x 5.22)
- 3.5ct Quartz (Princess, Orangey Red, 9.36 x 9.36) vs. 2.5ct Emerald (Princess, Green, 8.32 x 8.32)
- 31.5ct Quartz (Princess, Yellow, 19.47 x 19.47) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 2ct Quartz (Princess, Red, 7.77 x 7.77) vs. 2ct Quartz (Asscher, White, 7.74 x 7.74)
- 1ct Quartz (Princess, Gray, 6.17 x 6.17) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Quartz (Princess, Light Brown, 6.17 x 6.17) vs. 1ct Quartz (Emerald, Light Brown, 7.33 x 5.43)
- 13.55ct Quartz (Princess, Gray, 14.7 x 14.7) vs. 1.65ct Sapphire (Round, Light Blue, 7.06 x 7.06)
- 1ct Quartz (Princess, Dark Red, 6.17 x 6.17) vs. 2ct Diamond (Round, White, 8.19 x 8.19)