1.5ct Sapphire (Oval, 8×6mm, Dark Blue) vs 3ct Diamond (Princess, 7.99×7.94mm, Yellow)
Quick summary: When looked from above (face-up position), 3ct Colored Diamond (7.99×7.94mm, princess cut) appears 61% larger than 1.5ct Sapphire (8×6mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 1.5ct Sapphire (oval cut) |
vs
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3ct Diamond (princess cut) |
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dark blue |
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| 8×6 mm | 7.99×7.94 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
1.5ct Sapphire Oval (8×6mm, Dark Blue)
and
3ct Diamond Princess (7.99×7.94mm, Yellow)
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.
| 1.5 Ct Sapphire (Oval) | 3 Ct Colored Diamond (Princess) | |
| 8×6 mm | vs | 7.99×7.94 mm |
| 39.36 mm² | 63.44 mm² |
| 1.5ct Sapphire Oval (8×6mm) | |
| 3ct Colored Diamond Princess (7.99×7.94mm) | |
| Difference: 61% (24.08 mm²) |
3ct Colored Diamond (Princess, 7.99×7.94mm) has approx. 61% more face-up area than 1.5ct Sapphire (Oval, 8×6mm).
Popular comparisons:
- 1.5ct Sapphire (Oval, Dark Blue, 8 x 6) vs. 1.52ct Diamond (Oval, White, 9.33 x 6.22)
- 1.5ct Sapphire (Oval, Dark Blue, 8 x 6) vs. 1ct Diamond (Oval, White, 7 x 5)
- 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)
- 5ct Sapphire (Oval, Blue, 12.93 x 8.62) vs. 5ct Diamond (Oval, White, 13.88 x 9.25)
- 2.5ct Sapphire (Oval, White, 9 x 7) vs. 2.5ct Diamond (Oval, White, 9 x 7)
- 3ct Sapphire (Oval, Blue, 10.91 x 7.27) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 1.52ct Sapphire (Oval, Blue, 8.7 x 5.8) vs. 0.92ct Diamond (Round, White, 6.32 x 6.32)