0.8ct Sapphire (Round, 5.55×5.55mm, Blue) vs 0.81ct Diamond (Round, 6.06×6.06mm, White)
Quick summary: When looked from above (face-up position), 0.81ct Diamond (6.06×6.06mm, round cut) appears 19% larger than 0.8ct Sapphire (5.55×5.55mm, round cut). See below how they compare side-by-side on a ring and finger.
| 0.8ct Sapphire (round cut) |
vs
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0.81ct Diamond (round cut) |
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blue |
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| 5.55×5.55 mm | 6.06×6.06 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
0.8ct Sapphire Round (5.55×5.55mm, Blue)
and
0.81ct Diamond Round (6.06×6.06mm, 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.
| 0.8 Ct Sapphire (Round) | 0.81 Ct Diamond (Round) | |
| 5.55×5.55 mm | vs | 6.06×6.06 mm |
| 24.19 mm² | 28.84 mm² |
| 0.8ct Sapphire Round (5.55×5.55mm) | |
| 0.81ct Diamond Round (6.06×6.06mm) | |
| Difference: 19% (4.65 mm²) |
0.81ct Diamond (Round, 6.06×6.06mm) has approx. 19% more face-up area than 0.8ct Sapphire (Round, 5.55×5.55mm).
Popular comparisons:
- 0.8ct Sapphire (Round, Blue, 5.55 x 5.55) vs. 0.6ct Sapphire (Cushion, Blue, 4.72 x 4.72)
- 0.8ct Sapphire (Round, Blue, 5.55 x 5.55) vs. 0.6ct Diamond (Round, White, 5.48 x 5.48)
- 0.8ct Sapphire (Round, Blue, 5.55 x 5.55) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.8ct Sapphire (Round, Blue, 5.55 x 5.55) vs. 0.4ct Diamond (Round, White, 4.79 x 4.79)
- 0.8ct Sapphire (Round, Blue, 5.55 x 5.55) vs. 0.5ct Diamond (Round, White, 5.16 x 5.16)
- 0.8ct Sapphire (Round, Blue, 5.55 x 5.55) vs. 0.8ct Diamond (Round, White, 6.03 x 6.03)
- 0.8ct Sapphire (Round, Blue, 5.55 x 5.55) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 0.8ct Sapphire (Round, Blue, 5.55 x 5.55) vs. 1.21ct Diamond (Round, White, 6.93 x 6.93)