8.8ct Tourmaline (Oval, 15.22×11.45mm, Dark Yellowish Green) vs 4.28ct Diamond (Emerald, 9.19×9.06mm, Dark Yellowish Green)
Quick summary: When looked from above (face-up position), 8.8ct Tourmaline (15.22×11.45mm, oval cut) appears 85% larger than 4.28ct Colored Diamond (9.19×9.06mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 8.8ct Tourmaline (oval cut) |
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4.28ct Diamond (emerald cut) |
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dark yellowish green |
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| 15.22×11.45 mm | 9.19×9.06 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
8.8ct Tourmaline Oval (15.22×11.45mm, Dark Yellowish Green)
and
4.28ct Diamond Emerald (9.19×9.06mm, Dark Yellowish Green)
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, Diamond will face-up smaller than Tourmaline for a given
carat weight, because it has higher specific gravity
(3.52 vs. 3.06 - this means it's "heavier" compared to Tourmaline 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.
| 8.8 Ct Tourmaline (Oval) | 4.28 Ct Colored Diamond (Emerald) | |
| 15.22×11.45 mm | vs | 9.19×9.06 mm |
| 142.9 mm² | 77.43 mm² |
| 8.8ct Tourmaline Oval (15.22×11.45mm) | |
| 4.28ct Colored Diamond Emerald (9.19×9.06mm) | |
| Difference: 85% (65.47 mm²) |
8.8ct Tourmaline (Oval, 15.22×11.45mm) has approx. 85% more face-up area than 4.28ct Colored Diamond (Emerald, 9.19×9.06mm).
Popular comparisons:
- 8.8ct Tourmaline (Oval, Dark Yellowish Green, 15.22 x 11.45) vs. 6.54ct Sapphire (Pear, Dark Green, 12.83 x 9.31)
- 8.8ct Tourmaline (Oval, Dark Yellowish Green, 15.22 x 11.45) vs. 7ct Tourmaline (Oval, Red, 14.1 x 10.49)
- 8.8ct Tourmaline (Oval, Dark Yellowish Green, 15.22 x 11.45) vs. 8ct Emerald (Emerald, Bluish Green, 14.55 x 10.78)
- 8.8ct Tourmaline (Oval, Dark Yellowish Green, 15.22 x 11.45) vs. 6.13ct Tourmaline (Oval, Dark Yellowish Green, 12.7 x 11)
- 8.8ct Tourmaline (Oval, Dark Yellowish Green, 15.22 x 11.45) vs. 8.3ct Tourmaline (Emerald, Light Red, 13.8 x 10.4)
- 8.8ct Tourmaline (Oval, Dark Yellowish Green, 15.22 x 11.45) vs. 7.65ct Diamond (Emerald, White, 14 x 9)
- 8.8ct Tourmaline (Oval, Dark Yellowish Green, 15.22 x 11.45) vs. 6.53ct Sapphire (Pear, Dark Green, 12.83 x 9.31)
- 8.8ct Tourmaline (Oval, Dark Yellowish Green, 15.22 x 11.45) vs. 7ct Emerald (Emerald, Bluish Green, 14.06 x 9.19)