2ct Tourmaline (Cushion, 7.67×7.67mm, Violet) vs 2ct Diamond (Round, 8.19×8.19mm, White)
Quick summary: When looked from above (face-up position), 2ct Tourmaline (7.67×7.67mm, cushion cut) appears 0.5% larger than 2ct Diamond (8.19×8.19mm, round cut). See below how they compare side-by-side on a ring and finger.
| 2ct Tourmaline (cushion cut) |
vs
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2ct Diamond (round cut) |
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violet |
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| 7.67×7.67 mm | 8.19×8.19 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
2ct Tourmaline Cushion (7.67×7.67mm, Violet)
and
2ct Diamond Round (8.19×8.19mm, White)
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.
| 2 Ct Tourmaline (Cushion) | 2 Ct Diamond (Round) | |
| 7.67×7.67 mm | vs | 8.19×8.19 mm |
| 52.95 mm² | 52.68 mm² |
| 2ct Tourmaline Cushion (7.67×7.67mm) | |
| 2ct Diamond Round (8.19×8.19mm) | |
| Difference: 0.5% (0.27 mm²) |
2ct Tourmaline (Cushion, 7.67×7.67mm) has approx. 0.5% more face-up area than 2ct Diamond (Round, 8.19×8.19mm).
Popular comparisons:
- 2ct Tourmaline (Cushion, Violet, 7.67 x 7.67) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2ct Tourmaline (Cushion, Violet, 7.67 x 7.67) vs. 2ct Tourmaline (Round, Violet, 8.2 x 8.2)
- 5.8ct Tourmaline (Cushion, Dark Green, 10.69 x 10.69) vs. 6.53ct Sapphire (Pear, Dark Green, 12.83 x 9.31)
- 1ct Tourmaline (Cushion, Violet, 6.09 x 6.09) vs. 1ct Tourmaline (Emerald, Violet, 6.95 x 5.15)
- 3.9ct Tourmaline (Cushion, Light Yellow, 9.58 x 9.58) vs. 6.3ct Tourmaline (Cushion, Light Yellow, 11.24 x 11.24)
- 6ct Tourmaline (Cushion, Light Yellow, 11.06 x 11.06) vs. 3ct Chrysoberyl (Cushion, Light Yellowish Green, 8.28 x 8.28)
- 5.5ct Tourmaline (Cushion, Dark Bluish Green, 10.75 x 10.75) vs. 1.5ct Sapphire (Round, Light Blue, 6.84 x 6.84)
- 1ct Tourmaline (Cushion, Violet, 6.09 x 6.09) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)