3ct Sapphire (Emerald, 9.21×6.82mm, Dark 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.
| 3ct Sapphire (emerald cut) |
vs
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2ct Diamond (oval cut) |
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dark blue |
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| 9.21×6.82 mm | 10.23×6.82 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
3ct Sapphire Emerald (9.21×6.82mm, Dark 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, Dark Blue, 9.21 x 6.82) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3ct Sapphire (Emerald, Dark Blue, 9.21 x 6.82) vs. 3ct Sapphire (Oval, Orange, 10.91 x 7.27)
- 3ct Sapphire (Emerald, Dark Blue, 9.21 x 6.82) vs. 3ct Diamond (Emerald, White, 9.64 x 7.14)
- 1ct Sapphire (Emerald, Blue, 7 x 5) vs. 1ct Sapphire (Oval, Blue, 7 x 5)
- 2ct Sapphire (Emerald, Blue, 8.05 x 5.96) vs. 2ct Diamond (Emerald, White, 8.42 x 6.24)
- 2ct Sapphire (Emerald, Blue, 8.05 x 5.96) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 3ct Sapphire (Emerald, Blue, 10 x 8) vs. 3ct Sapphire (Round, Blue, 8.62 x 8.62)
- 1ct Sapphire (Emerald, Blue, 6.39 x 4.73) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)