20ct Quartz (Princess, 16.36×16.36mm, Brown) vs 20ct Andesine (Princess, 16.31×16.31mm, Orange)
Quick summary: When looked from above (face-up position), 20ct Quartz (16.36×16.36mm, princess cut) appears 0.6% larger than 20ct Andesine (16.31×16.31mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 20ct Quartz (princess cut) |
vs
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20ct Andesine (princess cut) |
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brown |
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| 16.36×16.36 mm | 16.31×16.31 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
20ct Quartz Princess (16.36×16.36mm, Brown)
and
20ct Andesine Princess (16.31×16.31mm, Orange)
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, Andesine will face-up slightly smaller than Quartz for a given
carat weight, because it has higher specific gravity
(2.67 vs. 2.65 - this means it's "slightly 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.
| 20 Ct Quartz (Princess) | 20 Ct Andesine (Princess) | |
| 16.36×16.36 mm | vs | 16.31×16.31 mm |
| 267.65 mm² | 266.02 mm² |
| 20ct Quartz Princess (16.36×16.36mm) | |
| 20ct Andesine Princess (16.31×16.31mm) | |
| Difference: 0.6% (1.63 mm²) |
20ct Quartz (Princess, 16.36×16.36mm) has approx. 0.6% more face-up area than 20ct Andesine (Princess, 16.31×16.31mm).
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)
- 4ct Quartz (Princess, White, 9.79 x 9.79) vs. 1.65ct Sapphire (Round, Light Blue, 7.06 x 7.06)
- 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)