1.5ct Tanzanite (Emerald, 7.79×5.77mm, Blue) vs 2ct Diamond (Round, 8.19×8.19mm, White)
Quick summary: When looked from above (face-up position), 2ct Diamond (8.19×8.19mm, round cut) appears 26% larger than 1.5ct Tanzanite (7.79×5.77mm, emerald cut). See below how they compare side-by-side on a ring and finger.
| 1.5ct Tanzanite (emerald cut) |
vs
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2ct Diamond (round cut) |
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blue |
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| 7.79×5.77 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
1.5ct Tanzanite Emerald (7.79×5.77mm, Blue)
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 Tanzanite for a given
carat weight, because it has higher specific gravity
(3.52 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.
| 1.5 Ct Tanzanite (Emerald) | 2 Ct Diamond (Round) | |
| 7.79×5.77 mm | vs | 8.19×8.19 mm |
| 41.8 mm² | 52.68 mm² |
| 1.5ct Tanzanite Emerald (7.79×5.77mm) | |
| 2ct Diamond Round (8.19×8.19mm) | |
| Difference: 26% (10.88 mm²) |
2ct Diamond (Round, 8.19×8.19mm) has approx. 26% more face-up area than 1.5ct Tanzanite (Emerald, 7.79×5.77mm).
Popular comparisons:
- 1.5ct Tanzanite (Emerald, Blue, 7.79 x 5.77) vs. 1.05ct Diamond (Cushion, White, 5.92 x 5.92)
- 1.5ct Tanzanite (Emerald, Blue, 7.79 x 5.77) vs. 0.83ct Tanzanite (Cushion, Blue, 5.6 x 5.6)
- 1.5ct Tanzanite (Emerald, Blue, 7.79 x 5.77) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1.5ct Tanzanite (Emerald, Blue, 7.79 x 5.77) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 1.5ct Tanzanite (Emerald, Blue, 7.79 x 5.77) vs. 3ct Morganite (Round, Light Brown, 9.83 x 9.83)
- 1.5ct Tanzanite (Emerald, Blue, 7.79 x 5.77) vs. 3.15ct Morganite (Cushion, Light Red, 9.34 x 9.34)
- 1.5ct Tanzanite (Emerald, Blue, 7.79 x 5.77) vs. 1.5ct Diamond (Emerald, White, 7.65 x 5.67)
- 2ct Tanzanite (Emerald, Blue, 8.57 x 6.35) vs. 3ct Tanzanite (Emerald, Blue, 9.81 x 7.27)