1ct Sapphire (Oval, 7×4.92mm, Light Blue) vs 1ct Diamond (Marquise, 9.96×4.99mm, White)
Quick summary: When looked from above (face-up position), 1ct Diamond (9.96×4.99mm, marquise cut) appears 25% larger than 1ct Sapphire (7×4.92mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 1ct Sapphire (oval cut) |
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1ct Diamond (marquise cut) |
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light blue |
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| 7×4.92 mm | 9.96×4.99 mm | |
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Actual sizes of
1ct Sapphire Oval (7×4.92mm, Light Blue)
and
1ct Diamond Marquise (9.96×4.99mm, 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 (Oval) | 1 Ct Diamond (Marquise) | |
| 7×4.92 mm | vs | 9.96×4.99 mm |
| 28.24 mm² | 35.29 mm² |
| 1ct Sapphire Oval (7×4.92mm) | |
| 1ct Diamond Marquise (9.96×4.99mm) | |
| Difference: 25% (7.05 mm²) |
1ct Diamond Marquise (9.96×4.99mm) has approx. 25% more face-up area than 1ct Sapphire Oval (7×4.92mm).
Popular comparisons:
- 1ct Sapphire (Oval, Light Blue, 7 x 4.92) vs. 1ct Sapphire (Oval, White, 8 x 6)
- 1ct Sapphire (Oval, Light Blue, 7 x 4.92) vs. 1ct Sapphire (Oval, Light Gray, 8 x 6)
- 1ct Sapphire (Oval, Light Blue, 7 x 4.92) vs. 1ct Sapphire (Oval, Blue, 8 x 6)
- 1ct Sapphire (Oval, Light Blue, 7 x 4.92) vs. 1ct Diamond (Round, Light Gray, 6 x 6)
- 2ct Sapphire (Oval, Blue, 9.53 x 6.35) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 1.5ct Sapphire (Oval, Blue, 8.66 x 5.77) vs. 1.52ct Diamond (Oval, White, 9.33 x 6.22)
- 2.5ct Sapphire (Oval, White, 9 x 7) vs. 2.5ct Diamond (Oval, White, 9 x 7)
- 5ct Sapphire (Oval, Blue, 12.93 x 8.62) vs. 5ct Diamond (Oval, White, 13.88 x 9.25)
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Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.