18ct Sinhalite (Round, 16.41×16.41mm, Light Brown) vs 18ct Andesine (Round, 17.93×17.93mm, Orange)
Quick summary: When looked from above (face-up position), 18ct Andesine (17.93×17.93mm, round cut) appears 19% larger than 18ct Sinhalite (16.41×16.41mm, round cut). See below how they compare side-by-side on a ring and finger.
| 18ct Sinhalite (round cut) |
vs
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18ct Andesine (round cut) |
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light brown |
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| 16.41×16.41 mm | 17.93×17.93 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 Sinhalite Round (16.41×16.41mm, Light Brown)
and
18ct Andesine Round (17.93×17.93mm, 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, Sinhalite will face-up smaller than Andesine for a given
carat weight, because it has higher specific gravity
(3.48 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.
| 18 Ct Sinhalite (Round) | 18 Ct Andesine (Round) | |
| 16.41×16.41 mm | vs | 17.93×17.93 mm |
| 211.5 mm² | 252.49 mm² |
| 18ct Sinhalite Round (16.41×16.41mm) | |
| 18ct Andesine Round (17.93×17.93mm) | |
| Difference: 19% (40.99 mm²) |
18ct Andesine (Round, 17.93×17.93mm) has approx. 19% more face-up area than 18ct Sinhalite (Round, 16.41×16.41mm).
Popular comparisons:
- 1ct Sinhalite (Round, Light Brown, 6.26 x 6.26) vs. 1ct Fluorite (Princess, Bluish Green, 5.67 x 5.67)
- 1ct Sinhalite (Round, Light Brown, 6.26 x 6.26) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 2ct Sinhalite (Round, Light Brown, 7.89 x 7.89) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 2ct Sinhalite (Round, Light Brown, 7.89 x 7.89) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1ct Sinhalite (Round, Light Brown, 6.26 x 6.26) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Sinhalite (Round, White, 6.26 x 6.26) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1.21ct Sinhalite (Round, White, 6.67 x 6.67) vs. 1.21ct Sapphire (Oval, Dark Bluish Green, 8.06 x 5.37)
- 2.7ct Ruby (Pear, Red, 10 x 7) vs. 3ct Ruby (Emerald, Red, 9 x 7)
- 1.5ct Tourmaline (Round, Light Red, 7.45 x 7.45) vs. 1.5ct Sapphire (Round, Light Blue, 6.84 x 6.84)