13ct Quartz (Trillion, 19.72×19.72mm, Brown) vs 13ct Andesine (Trillion, 19.67×19.67mm, Orange)
Quick summary: When looked from above (face-up position), 13ct Quartz (19.72×19.72mm, trillion cut) appears 0.5% larger than 13ct Andesine (19.67×19.67mm, trillion cut). See below how they compare side-by-side on a ring and finger.
| 13ct Quartz (trillion cut) |
vs
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13ct Andesine (trillion cut) |
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brown |
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| 19.72×19.72 mm | 19.67×19.67 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 Trillion (19.72×19.72mm, Brown)
and
13ct Andesine Trillion (19.67×19.67mm, 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 (Trillion) | 13 Ct Andesine (Trillion) | |
| 19.72×19.72 mm | vs | 19.67×19.67 mm |
| 241.1 mm² | 239.88 mm² |
| 13ct Quartz Trillion (19.72×19.72mm) | |
| 13ct Andesine Trillion (19.67×19.67mm) | |
| Difference: 0.5% (1.22 mm²) |
13ct Quartz (Trillion, 19.72×19.72mm) has approx. 0.5% more face-up area than 13ct Andesine (Trillion, 19.67×19.67mm).
Popular comparisons:
- 0.33ct Quartz (Trillion, Dark Purple, 5.51 x 4.82) vs. 0.31ct Quartz (Trillion, Dark Purple, 5.03 x 4.85)
- 0.33ct Quartz (Trillion, Dark Purple, 5.51 x 4.82) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Quartz (Trillion, Orangey Red, 13.79 x 13.79) vs. 5ct Amethyst (Round, Violet, 11.73 x 11.73)
- 1ct Quartz (Trillion, Orangey Red, 8.06 x 8.06) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Quartz (Trillion, White, 8.06 x 8.06) vs. 1ct Quartz (Round, White, 6.86 x 6.86)
- 5.35ct Quartz (Trillion, Gray, 14.1 x 14.1) vs. 1.65ct Sapphire (Round, Light Blue, 7.06 x 7.06)
- 9.73ct Quartz (Trillion, Yellow, 15.6 x 15.5) vs. 7.56ct Quartz (Trillion, Yellow, 15 x 15)
- 1ct Quartz (Trillion, Yellowish Green, 8.06 x 8.06) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2.7ct Ruby (Pear, Red, 10 x 7) vs. 3ct Ruby (Emerald, Red, 9 x 7)