1.22ct Sapphire (Cushion, 6.39×5.56mm, Blue) vs 1.51ct Diamond (Cushion, 6.98×6.06mm, Light Yellow)
Quick summary: When looked from above (face-up position), 1.51ct Colored Diamond (6.98×6.06mm, cushion cut) appears 19% larger than 1.22ct Sapphire (6.39×5.56mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 1.22ct Sapphire (cushion cut) |
vs
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1.51ct Diamond (cushion cut) |
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blue |
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| 6.39×5.56 mm | 6.98×6.06 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
1.22ct Sapphire Cushion (6.39×5.56mm, Blue)
and
1.51ct Diamond Cushion (6.98×6.06mm, Light 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.
| 1.22 Ct Sapphire (Cushion) | 1.51 Ct Colored Diamond (Cushion) | |
| 6.39×5.56 mm | vs | 6.98×6.06 mm |
| 31.98 mm² | 38.07 mm² |
| 1.22ct Sapphire Cushion (6.39×5.56mm) | |
| 1.51ct Colored Diamond Cushion (6.98×6.06mm) | |
| Difference: 19% (6.09 mm²) |
1.51ct Colored Diamond (Cushion, 6.98×6.06mm) has approx. 19% more face-up area than 1.22ct Sapphire (Cushion, 6.39×5.56mm).
Popular comparisons:
- 1.22ct Sapphire (Cushion, Blue, 6.39 x 5.56) vs. 1ct Diamond (Emerald, White, 6.68 x 4.95)
- 1.22ct Sapphire (Cushion, Blue, 6.39 x 5.56) vs. 1.15ct Emerald (Emerald, Dark Green, 7.63 x 5.65)
- 1.22ct Sapphire (Cushion, Blue, 6.39 x 5.56) vs. 1.15ct Emerald (Cushion, Dark Green, 6.68 x 6.68)
- 1.22ct Sapphire (Cushion, Blue, 6.39 x 5.56) vs. 1.15ct Emerald (Cushion, Dark Green, 7 x 6.68)
- 1.22ct Sapphire (Cushion, Blue, 6.39 x 5.56) vs. 1.58ct Sapphire (Emerald, Blue, 7.44 x 5.51)
- 1.22ct Sapphire (Cushion, Blue, 6.39 x 5.56) vs. 0.15ct Diamond (Emerald, White, 4.55 x 2.35)
- 1.22ct Sapphire (Cushion, Blue, 6.39 x 5.56) vs. 0.15ct Diamond (Baguette, White, 3.84 x 2.56)
- 1.22ct Sapphire (Cushion, Blue, 6.39 x 5.56) vs. 0.15ct Diamond (Round, White, 3.45 x 3.45)