2ct Sapphire (Princess, 6.77×6.77mm, Blue) vs 2.7ct Diamond (Round, 9.05×9.05mm, White)
Quick summary: When looked from above (face-up position), 2.7ct Diamond (9.05×9.05mm, round cut) appears 40% larger than 2ct Sapphire (6.77×6.77mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 2ct Sapphire (princess cut) |
vs
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2.7ct Diamond (round cut) |
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blue |
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| 6.77×6.77 mm | 9.05×9.05 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 Sapphire Princess (6.77×6.77mm, Blue)
and
2.7ct Diamond Round (9.05×9.05mm, 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.
| 2 Ct Sapphire (Princess) | 2.7 Ct Diamond (Round) | |
| 6.77×6.77 mm | vs | 9.05×9.05 mm |
| 45.83 mm² | 64.33 mm² |
| 2ct Sapphire Princess (6.77×6.77mm) | |
| 2.7ct Diamond Round (9.05×9.05mm) | |
| Difference: 40% (18.5 mm²) |
2.7ct Diamond (Round, 9.05×9.05mm) has approx. 40% more face-up area than 2ct Sapphire (Princess, 6.77×6.77mm).
Popular comparisons:
- 2ct Sapphire (Princess, Blue, 6.77 x 6.77) vs. 2ct Diamond (Princess, White, 6.94 x 6.94)
- 2ct Sapphire (Princess, Blue, 6.77 x 6.77) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 2ct Sapphire (Princess, Blue, 6.77 x 6.77) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2ct Sapphire (Princess, Blue, 6.77 x 6.77) vs. 1ct Diamond (Cushion, White, 5.83 x 5.83)
- 2ct Sapphire (Princess, Blue, 6.77 x 6.77) vs. 2.6ct Diamond (Princess, White, 7.58 x 7.58)
- 2ct Sapphire (Princess, Blue, 6.77 x 6.77) vs. 0.15ct Diamond (Princess, White, 2.93 x 2.93)
- 2ct Sapphire (Princess, Blue, 6.77 x 6.77) vs. 1ct Diamond (Cabochon, White, 7.14 x 4.76)
- 2ct Sapphire (Princess, Blue, 6.77 x 6.77) vs. 0.12ct Diamond (Princess, White, 2.72 x 2.72)