0.5ct Sapphire (Princess, 4.27×4.27mm, 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 67% larger than 0.5ct Sapphire (4.27×4.27mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 0.5ct Sapphire (princess cut) |
vs
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1ct Diamond (princess cut) |
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blue |
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| 4.27×4.27 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
0.5ct Sapphire Princess (4.27×4.27mm, 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.
| 0.5 Ct Sapphire (Princess) | 1 Ct Diamond (Princess) | |
| 4.27×4.27 mm | vs | 5.51×5.51 mm |
| 18.23 mm² | 30.36 mm² |
| 0.5ct Sapphire Princess (4.27×4.27mm) | |
| 1ct Diamond Princess (5.51×5.51mm) | |
| Difference: 67% (12.13 mm²) |
1ct Diamond (Princess, 5.51×5.51mm) has approx. 67% more face-up area than 0.5ct Sapphire (Princess, 4.27×4.27mm).
Popular comparisons:
- 0.5ct Sapphire (Princess, Blue, 4.27 x 4.27) vs. 1ct Diamond (Cushion, White, 5.83 x 5.83)
- 0.5ct Sapphire (Princess, Blue, 4.27 x 4.27) vs. 2ct Diamond (Princess, White, 6.94 x 6.94)
- 0.5ct Sapphire (Princess, Blue, 4.27 x 4.27) vs. 0.5ct Diamond (Princess, White, 4.37 x 4.37)
- 0.5ct Sapphire (Princess, Blue, 4.27 x 4.27) vs. 1.14ct Sapphire (Princess, Blue, 5.61 x 5.61)
- 0.5ct Sapphire (Princess, Blue, 4.27 x 4.27) vs. 0.1ct Sapphire (Princess, Blue, 2.49 x 2.49)
- 0.5ct Sapphire (Princess, Blue, 4.27 x 4.27) vs. 0.15ct Sapphire (Princess, Blue, 2.86 x 2.86)
- 0.5ct Sapphire (Princess, Blue, 4.27 x 4.27) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.5ct Sapphire (Princess, Blue, 4.27 x 4.27) vs. 0.5ct Diamond (Round, White, 5.16 x 5.16)