0.51ct Diamond (Oval, 6.48×4.32mm, White) vs 1ct Sapphire (Oval, 7×5mm, Dark Bluish Green)
Quick summary: When looked from above (face-up position), 1ct Sapphire (7×5mm, oval cut) appears 25% larger than 0.51ct Diamond (6.48×4.32mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 0.51ct Diamond (oval cut) |
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1ct Sapphire (oval cut) |
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white |
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| 6.48×4.32 mm | 7×5 mm | |
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Actual sizes of
0.51ct Diamond Oval (6.48×4.32mm, White)
and
1ct Sapphire Oval (7×5mm, Dark Bluish Green)
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.
| 0.51 Ct Diamond (Oval) | 1 Ct Sapphire (Oval) | |
| 6.48×4.32 mm | vs | 7×5 mm |
| 22.95 mm² | 28.7 mm² |
| 0.51ct Diamond Oval (6.48×4.32mm) | |
| 1ct Sapphire Oval (7×5mm) | |
| Difference: 25% (5.75 mm²) |
1ct Sapphire Oval (7×5mm) has approx. 25% more face-up area than 0.51ct Diamond Oval (6.48×4.32mm).
Popular comparisons:
- 0.51ct Diamond (Oval, White, 6.48 x 4.32) vs. 0.6ct Diamond (Round, White, 5.48 x 5.48)
- 0.51ct Diamond (Oval, White, 6.48 x 4.32) vs. 0.78ct Diamond (Marquise, White, 9.56 x 4.78)
- 0.51ct Diamond (Oval, White, 6.48 x 4.32) vs. 0.47ct Diamond (Pear, White, 7.04 x 4.24)
- 0.51ct Diamond (Oval, White, 6.48 x 4.32) vs. 1ct Chrysoberyl (Round, Light Yellowish Green, 6.14 x 6.14)
- 0.51ct Diamond (Oval, White, 6.48 x 4.32) vs. 0.3ct Diamond (Oval, White, 5.06 x 3.71)
- 0.51ct Diamond (Oval, White, 6.48 x 4.32) vs. 0.47ct Diamond (Trillion, White, 6.01 x 6.01)
- 0.51ct Diamond (Oval, White, 6.48 x 4.32) vs. 0.47ct Diamond (Marquise, White, 8.08 x 4.04)
- 1ct Diamond (Oval, White, 8 x 6) vs. 1ct Sapphire (Oval, Blue, 7 x 5)
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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.