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1.22ct Sapphire (Cushion, 6.39×5.56mm, Dark Blue) vs 0.15ct Diamond (Baguette, 4.55×2.35mm, White)


Quick summary: When looked from above (face-up position), 1.22ct Sapphire (6.39×5.56mm, cushion cut) appears 3 times larger than 0.15ct Diamond (4.55×2.35mm, baguette cut). See below how they compare side-by-side on a ring and finger.

1.22ct Sapphire (cushion cut)
vs
 0.15ct Diamond (baguette cut)
dark blue
 
white
6.39×5.56 mm 4.55×2.35 mm
actual size
Actual size of 1.22ct Sapphire (cushion cut, 6.39×5.56mm, Dark Blue color)   Actual size of 0.15ct Diamond (baguette cut, 4.55×2.35mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Dark Blue 1.22ct Sapphire (cushion cut, 6.39×5.56mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.15ct Diamond (baguette cut, 4.55×2.35mm) on a right ring and finger
Your settings
Ring
 Gold
Skin tone
 Light
Ring diameter
 16.9 mm
Ring width
 3.0 mm
Finger length
 64 mm
Finger coverage
 33% vs 14%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.22ct Sapphire Cushion (6.39×5.56mm, Dark Blue) and 0.15ct Diamond Baguette (4.55×2.35mm, 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.


1.22 Ct Sapphire (Cushion) 0.15 Ct Diamond (Baguette)
6.39×5.56 mm vs 4.55×2.35 mm
31.98 mm²   10.69 mm²
Face-up size outline for 1.22ct Sapphire (6.39×5.56mm, cushion cut)
Face-up size outline for 0.15ct Diamond (4.55×2.35mm, baguette cut)
1.22ct Sapphire Cushion (6.39×5.56mm)
0.15ct Diamond Baguette (4.55×2.35mm)
Difference: 199% (21.29 mm²)
1.22ct Sapphire (Cushion, 6.39×5.56mm) has approx. 199% more face-up area than 0.15ct Diamond (Baguette, 4.55×2.35mm). In other words, it's 2.99x larger.


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