18ct Quartz (Emerald, 19.2×14.22mm, Brown) vs 18ct Andesine (Emerald, 19.14×14.18mm, Orange)
Quick summary: When looked from above (face-up position), 18ct Quartz (19.2×14.22mm, emerald cut) appears 0.6% larger than 18ct Andesine (19.14×14.18mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 18ct Quartz (emerald cut) |
vs
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18ct Andesine (emerald cut) |
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brown |
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| 19.2×14.22 mm | 19.14×14.18 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
18ct Quartz Emerald (19.2×14.22mm, Brown)
and
18ct Andesine Emerald (19.14×14.18mm, 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.
| 18 Ct Quartz (Emerald) | 18 Ct Andesine (Emerald) | |
| 19.2×14.22 mm | vs | 19.14×14.18 mm |
| 253.91 mm² | 252.41 mm² |
| 18ct Quartz Emerald (19.2×14.22mm) | |
| 18ct Andesine Emerald (19.14×14.18mm) | |
| Difference: 0.6% (1.5 mm²) |
18ct Quartz (Emerald, 19.2×14.22mm) has approx. 0.6% more face-up area than 18ct Andesine (Emerald, 19.14×14.18mm).
Popular comparisons:
- 1ct Quartz (Emerald, Orangey Red, 7.33 x 5.43) vs. 1ct Spinel (Emerald, Red, 6.62 x 4.9)
- 8ct Quartz (Emerald, Light Violet, 14.65 x 10.85) vs. 10ct Diamond (Emerald, White, 14.39 x 10.66)
- 1ct Quartz (Emerald, Light Orange, 7.33 x 5.43) vs. 1ct Quartz (Asscher, Light Orange, 6.15 x 6.15)
- 10.61ct Quartz (Emerald, Dark Brown, 16.91 x 10.71) vs. 6.66ct Quartz (Emerald, Dark Brown, 12.31 x 9.61)
- 13.25ct Quartz (Emerald, Light Red, 15.8 x 12.9) vs. 10ct Diamond (Emerald, White, 14.39 x 10.66)
- 15ct Quartz (Emerald, Light Blue, 18.06 x 13.38) vs. 15ct Quartz (Asscher, Light Blue, 15.16 x 15.16)
- 5.3ct Quartz (Emerald, Red, 10.7 x 9.1) vs. 2.2ct Quartz (Emerald, Red, 8.7 x 7.1)
- 8ct Quartz (Emerald, Light Violet, 15 x 12) vs. 10ct Diamond (Emerald, White, 14.39 x 10.66)
- 13.25ct Quartz (Emerald, Light Violet, 17.33 x 12.84) vs. 10ct Diamond (Emerald, White, 14.39 x 10.66)