1ct Sapphire (Princess, 5.37×5.37mm, Blue) vs 1ct Diamond (Princess, 5.51×5.51mm, White)
Quick summary: When looked from above (face-up position), 1ct Diamond (5.51×5.51mm, princess cut) appears 5% larger than 1ct Sapphire (5.37×5.37mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 1ct Sapphire (princess cut) |
vs
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1ct Diamond (princess cut) |
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blue |
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| 5.37×5.37 mm | 5.51×5.51 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
1ct Sapphire Princess (5.37×5.37mm, Blue)
and
1ct Diamond Princess (5.51×5.51mm, 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.
| 1 Ct Sapphire (Princess) | 1 Ct Diamond (Princess) | |
| 5.37×5.37 mm | vs | 5.51×5.51 mm |
| 28.84 mm² | 30.36 mm² |
| 1ct Sapphire Princess (5.37×5.37mm) | |
| 1ct Diamond Princess (5.51×5.51mm) | |
| Difference: 5% (1.52 mm²) |
1ct Diamond (Princess, 5.51×5.51mm) has approx. 5% more face-up area than 1ct Sapphire (Princess, 5.37×5.37mm).
Popular comparisons:
- 1ct Sapphire (Princess, Blue, 5.37 x 5.37) vs. 1ct Diamond (Cushion, White, 5.83 x 5.83)
- 1ct Sapphire (Princess, Blue, 5.37 x 5.37) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Sapphire (Princess, Blue, 5.37 x 5.37) vs. 2ct Diamond (Princess, White, 6.94 x 6.94)
- 1ct Sapphire (Princess, Blue, 5.37 x 5.37) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1ct Sapphire (Princess, Blue, 5.37 x 5.37) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 1ct Sapphire (Princess, Blue, 5.37 x 5.37) vs. 0.5ct Sapphire (Princess, Blue, 4.27 x 4.27)
- 1ct Sapphire (Princess, Blue, 5.37 x 5.37) vs. 0.75ct Sapphire (Princess, Blue, 5 x 5)
- 1ct Sapphire (Princess, Blue, 5.37 x 5.37) vs. 1ct Sapphire (Cushion, Blue, 6 x 6)