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0.5ct Sapphire (Baguette, 5.51×3.67mm, Blue) vs 5ct Diamond (Round, 11.11×11.11mm, White)


Quick summary: When looked from above (face-up position), 5ct Diamond (11.11×11.11mm, round cut) appears 4.8 times larger than 0.5ct Sapphire (5.51×3.67mm, baguette cut). See below how they compare side-by-side on a ring and finger.

0.5ct Sapphire (baguette cut)
vs
5ct Diamond (round cut)
blue
 
white
5.51×3.67 mm 11.11×11.11 mm
actual size
Actual size of 0.5ct Sapphire (baguette cut, 5.51×3.67mm, Blue color)   Actual size of 5ct Diamond (round cut, 11.11×11.11mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.5ct Sapphire (baguette cut, 5.51×3.67mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 5ct Diamond (round cut, 11.11×11.11mm) 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
22% vs 66%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.5ct Sapphire Baguette (5.51×3.67mm, Blue) and 5ct Diamond Round (11.11×11.11mm, 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.


0.5 Ct Sapphire (Baguette) 5 Ct Diamond (Round)
5.51×3.67 mm vs 11.11×11.11 mm
20.22 mm²   96.94 mm²
Face-up size outline for 5ct Diamond (11.11×11.11mm, round cut)
Face-up size outline for 0.5ct Sapphire (5.51×3.67mm, baguette cut)
0.5ct Sapphire Baguette (5.51×3.67mm)
5ct Diamond Round (11.11×11.11mm)
Difference: 379% (76.72 mm²)
5ct Diamond (Round, 11.11×11.11mm) has approx. 379% more face-up area than 0.5ct Sapphire (Baguette, 5.51×3.67mm). In other words, it's 4.79x larger.


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