13ct Quartz (Round, 16.13×16.13mm, Brown) vs 13ct Andesine (Round, 16.08×16.08mm, Orange)
Quick summary: When looked from above (face-up position), 13ct Quartz (16.13×16.13mm, round cut) appears 0.6% larger than 13ct Andesine (16.08×16.08mm, round cut). See below how they compare side-by-side on a ring and finger.
| 13ct Quartz (round cut) |
vs
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13ct Andesine (round cut) |
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brown |
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| 16.13×16.13 mm | 16.08×16.08 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
13ct Quartz Round (16.13×16.13mm, Brown)
and
13ct Andesine Round (16.08×16.08mm, 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.
| 13 Ct Quartz (Round) | 13 Ct Andesine (Round) | |
| 16.13×16.13 mm | vs | 16.08×16.08 mm |
| 204.34 mm² | 203.08 mm² |
| 13ct Quartz Round (16.13×16.13mm) | |
| 13ct Andesine Round (16.08×16.08mm) | |
| Difference: 0.6% (1.26 mm²) |
13ct Quartz (Round, 16.13×16.13mm) has approx. 0.6% more face-up area than 13ct Andesine (Round, 16.08×16.08mm).
Popular comparisons:
- 1ct Quartz (Round, Orangey Red, 6.86 x 6.86) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Quartz (Round, Blue, 6.86 x 6.86) vs. 1ct Quartz (Round, Light Blue, 6.86 x 6.86)
- 3.33ct Quartz (Round, Orangey Red, 10 x 10) vs. 4ct Diamond (Round, White, 10.32 x 10.32)
- 5ct Quartz (Round, Orangey Red, 11.73 x 11.73) vs. 5ct Amethyst (Round, Violet, 11.73 x 11.73)
- 0.9ct Quartz (Round, Light Red, 6.5 x 6.5) vs. 1ct Quartz (Round, Light Red, 6.5 x 6.5)
- 2.29ct Quartz (Round, Light Gray, 9.04 x 9.04) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Quartz (Round, Orangey Red, 6.86 x 6.86) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2.6ct Quartz (Round, Gray, 9 x 9) vs. 2ct Quartz (Round, Gray, 8.3 x 8.3)
- 5ct Quartz (Round, Black, 11.73 x 11.73) vs. 5ct Diamond (Round, White, 11.11 x 11.11)