1ct Sapphire (Round, 6×6mm, Dark Bluish Green) vs 1ct Diamond (Round, 5.8×5.8mm, Brown)
Quick summary: When looked from above (face-up position), 1ct Sapphire (6×6mm, round cut) appears 7% larger than 1ct Colored Diamond (5.8×5.8mm, round cut). See below how they compare side-by-side on a ring and finger.
| 1ct Sapphire (round cut) |
vs
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1ct Diamond (round cut) |
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dark bluish green |
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| 6×6 mm | 5.8×5.8 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 Round (6×6mm, Dark Bluish Green)
and
1ct Diamond Round (5.8×5.8mm, Brown)
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 (Round) | 1 Ct Colored Diamond (Round) | |
| 6×6 mm | vs | 5.8×5.8 mm |
| 28.27 mm² | 26.42 mm² |
| 1ct Sapphire Round (6×6mm) | |
| 1ct Colored Diamond Round (5.8×5.8mm) | |
| Difference: 7% (1.85 mm²) |
1ct Sapphire (Round, 6×6mm) has approx. 7% more face-up area than 1ct Colored Diamond (Round, 5.8×5.8mm).
Popular comparisons:
- 1ct Sapphire (Round, Dark Bluish Green, 6 x 6) vs. 1ct Sapphire (Round, Dark Bluish Green, 6.5 x 6.5)
- 1ct Sapphire (Round, Dark Bluish Green, 6 x 6) vs. 1ct Sapphire (Round, Dark Bluish Green, 6.3 x 6.3)
- 1ct Sapphire (Round, Dark Bluish Green, 6 x 6) vs. 1.5ct Diamond (Round, White, 7.44 x 7.44)
- 1ct Sapphire (Round, Dark Bluish Green, 6 x 6) vs. 1ct Sapphire (Round, Blue, 6 x 6)
- 1ct Sapphire (Round, Dark Bluish Green, 6 x 6) vs. 1ct Sapphire (Oval, Dark Bluish Green, 7 x 5)
- 1ct Sapphire (Round, Dark Bluish Green, 6 x 6) vs. 1ct Sapphire (Round, Dark Bluish Green, 6.2 x 6.2)
- 1ct Sapphire (Round, Dark Bluish Green, 6 x 6) vs. 1ct Diamond (Round, Brown, 5.6 x 5.6)
- 1ct Sapphire (Round, Blue, 5.98 x 5.98) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)