30ct Ruby (Cushion, 17.2×17.2mm, Red) vs 30ct Andesine (Cushion, 19.68×19.68mm, Orange)
Quick summary: When looked from above (face-up position), 30ct Andesine (19.68×19.68mm, cushion cut) appears 31% larger than 30ct Ruby (17.2×17.2mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 30ct Ruby (cushion cut) |
vs
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30ct Andesine (cushion cut) |
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red |
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| 17.2×17.2 mm | 19.68×19.68 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
30ct Ruby Cushion (17.2×17.2mm, Red)
and
30ct Andesine Cushion (19.68×19.68mm, 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, Ruby will face-up smaller than Andesine for a given
carat weight, because it has higher specific gravity
(4 vs. 2.67 - this means it's "heavier" compared to Andesine 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.
| 30 Ct Ruby (Cushion) | 30 Ct Andesine (Cushion) | |
| 17.2×17.2 mm | vs | 19.68×19.68 mm |
| 266.26 mm² | 348.57 mm² |
| 30ct Ruby Cushion (17.2×17.2mm) | |
| 30ct Andesine Cushion (19.68×19.68mm) | |
| Difference: 31% (82.31 mm²) |
30ct Andesine (Cushion, 19.68×19.68mm) has approx. 31% more face-up area than 30ct Ruby (Cushion, 17.2×17.2mm).
Popular comparisons:
- 0.45ct Ruby (Cushion, Red, 4.28 x 4.28) vs. 0.33ct Sapphire (Trillion, Blue, 4.86 x 4.86)
- 3.45ct Ruby (Cushion, Red, 8.45 x 8.45) vs. 1ct Emerald (Cushion, Green, 6.37 x 6.37)
- 3ct Ruby (Cushion, Red, 8.06 x 8.06) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 3ct Ruby (Cushion, Red, 8.06 x 8.06) vs. 5ct Ruby (Cushion, Red, 9.56 x 9.56)
- 3ct Ruby (Cushion, Red, 8.06 x 8.06) vs. 3ct Diamond (Round, White, 9.37 x 9.37)
- 1ct Ruby (Cushion, Red, 5.59 x 5.59) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Ruby (Cushion, Red, 8.06 x 8.06) vs. 2ct Ruby (Round, Red, 7.53 x 7.53)
- 7.54ct Ruby (Cushion, Red, 10.96 x 10.96) vs. 4.04ct Ruby (Emerald, Red, 10.17 x 7.53)
- 12.31ct Ruby (Cushion, Red, 13.21 x 12.61) vs. 6.37ct Ruby (Cushion, Red, 10.37 x 10.37)