2ct Tanzanite (Cushion, 7.51×7.51mm, Blue) vs 2ct Ruby (Cushion, 7.04×7.04mm, Red)
Quick summary: When looked from above (face-up position), 2ct Tanzanite (7.51×7.51mm, cushion cut) appears 14% larger than 2ct Ruby (7.04×7.04mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 2ct Tanzanite (cushion cut) |
vs
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2ct Ruby (cushion cut) |
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blue |
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| 7.51×7.51 mm | 7.04×7.04 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 Tanzanite Cushion (7.51×7.51mm, Blue)
and
2ct Ruby Cushion (7.04×7.04mm, Red)
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 Tanzanite for a given
carat weight, because it has higher specific gravity
(4 vs. 3.35 - this means it's "heavier" compared to Tanzanite 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 Tanzanite (Cushion) | 2 Ct Ruby (Cushion) | |
| 7.51×7.51 mm | vs | 7.04×7.04 mm |
| 50.76 mm² | 44.61 mm² |
| 2ct Tanzanite Cushion (7.51×7.51mm) | |
| 2ct Ruby Cushion (7.04×7.04mm) | |
| Difference: 14% (6.15 mm²) |
2ct Tanzanite (Cushion, 7.51×7.51mm) has approx. 14% more face-up area than 2ct Ruby (Cushion, 7.04×7.04mm).
Popular comparisons:
- 2ct Tanzanite (Cushion, Blue, 7.51 x 7.51) vs. 2ct Diamond (Cushion, White, 7.34 x 7.34)
- 2ct Tanzanite (Cushion, Blue, 7.51 x 7.51) vs. 7ct Tanzanite (Cushion, Blue, 11.4 x 11.4)
- 2ct Tanzanite (Cushion, Blue, 7.51 x 7.51) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 2ct Tanzanite (Cushion, Blue, 7.51 x 7.51) vs. 2ct Emerald (Cushion, Green, 8.03 x 8.03)
- 2ct Tanzanite (Cushion, Blue, 7.51 x 7.51) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 2ct Tanzanite (Cushion, Blue, 7.51 x 7.51) vs. 0.7ct Diamond (Round, White, 5.77 x 5.77)
- 2ct Tanzanite (Cushion, Blue, 7.51 x 7.51) vs. 1.5ct Diamond (Round, White, 7.44 x 7.44)
- 2ct Tanzanite (Cushion, Blue, 7.51 x 7.51) vs. 2ct Diamond (Round, White, 8.19 x 8.19)