3ct Sapphire (Emerald, 9.21×6.82mm, Blue) vs 2ct Diamond (Oval, 10.23×6.82mm, White)
Quick summary: When looked from above (face-up position), 3ct Sapphire (9.21×6.82mm, emerald cut) appears 2% larger than 2ct Diamond (10.23×6.82mm, oval cut). See below how they compare side-by-side on a ring and finger.
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2ct Diamond (oval cut) |
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| 9.21×6.82 mm | 10.23×6.82 mm | |
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Actual sizes of
3ct Sapphire Emerald (9.21×6.82mm, Blue)
and
2ct Diamond Oval (10.23×6.82mm, 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, Sapphire will face-up smaller than Diamond for a given
carat weight, because it has higher specific gravity
(4 vs. 3.52 - this means it's "heavier" compared to Diamond 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.
| 3 Ct Sapphire (Emerald) | 2 Ct Diamond (Oval) | |
| 9.21×6.82 mm | vs | 10.23×6.82 mm |
| 58.42 mm² | 57.21 mm² |
| 3ct Sapphire Emerald (9.21×6.82mm) | |
| 2ct Diamond Oval (10.23×6.82mm) | |
| Difference: 2% (1.21 mm²) |
3ct Sapphire Emerald (9.21×6.82mm) has approx. 2% more face-up area than 2ct Diamond Oval (10.23×6.82mm).
Popular comparisons:
- 3ct Sapphire (Emerald, Blue, 9.21 x 6.82) vs. 3ct Diamond (Emerald, White, 9.64 x 7.14)
- 3ct Sapphire (Emerald, Blue, 9.21 x 6.82) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Sapphire (Emerald, Blue, 9.21 x 6.82) vs. 2ct Diamond (Emerald, White, 8.42 x 6.24)
- 3ct Sapphire (Emerald, Blue, 9.21 x 6.82) vs. 3ct Emerald (Emerald, Green, 10.5 x 7.78)
- 3ct Sapphire (Emerald, Blue, 9.21 x 6.82) vs. 3.5ct Sapphire (Emerald, Blue, 7.18 x 9.69)
- 3ct Sapphire (Emerald, Blue, 9.21 x 6.82) vs. 4ct Sapphire (Emerald, Blue, 10.14 x 7.51)
- 3ct Sapphire (Emerald, Blue, 9.21 x 6.82) vs. 2.2ct Sapphire (Emerald, Bluish Green, 8.3 x 6.15)
- 3ct Sapphire (Emerald, Blue, 9.21 x 6.82) vs. 3.5ct Sapphire (Emerald, Blue, 9.69 x 7.18)
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.