18ct Sinhalite (Oval, 21.05×14.03mm, Light Brown) vs 18ct Andesine (Oval, 23×15.33mm, Orange)
Quick summary: When looked from above (face-up position), 18ct Andesine (23×15.33mm, oval cut) appears 19% larger than 18ct Sinhalite (21.05×14.03mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 18ct Sinhalite (oval cut) |
vs
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18ct Andesine (oval cut) |
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light brown |
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| 21.05×14.03 mm | 23×15.33 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 Oval (21.05×14.03mm, Light Brown)
and
18ct Andesine Oval (23×15.33mm, 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 (Oval) | 18 Ct Andesine (Oval) | |
| 21.05×14.03 mm | vs | 23×15.33 mm |
| 242.17 mm² | 289.12 mm² |
| 18ct Sinhalite Oval (21.05×14.03mm) | |
| 18ct Andesine Oval (23×15.33mm) | |
| Difference: 19% (46.95 mm²) |
18ct Andesine (Oval, 23×15.33mm) has approx. 19% more face-up area than 18ct Sinhalite (Oval, 21.05×14.03mm).
Popular comparisons:
- 0.83ct Sinhalite (Oval, Light Brown, 7.44 x 4.96) vs. 3ct Emerald (Cushion, Green, 9.19 x 9.19)
- 6ct Sinhalite (Oval, Light Brown, 14.4 x 9.6) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 13ct Sinhalite (Oval, Light Brown, 18.63 x 12.42) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Sinhalite (Oval, Light Brown, 7.92 x 5.28) vs. 1ct Tanzanite (Oval, Blue, 8.07 x 5.38)
- 1.21ct Sinhalite (Oval, White, 8.45 x 5.63) 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)
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 1ct Tanzanite (Oval, Blue, 8.07 x 5.38)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Spinel (Oval, Gray, 8 x 6)