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0.09ct Sapphire (Round, 2.68×2.68mm, Blue) vs 0.5ct Ruby (Round, 4.75×4.75mm, Red)


Quick summary: When looked from above (face-up position), 0.5ct Ruby (4.75×4.75mm, round cut) appears 3.1 times larger than 0.09ct Sapphire (2.68×2.68mm, round cut). See below how they compare side-by-side on a ring and finger.

0.09ct Sapphire (round cut)
vs
 0.5ct Ruby (round cut)
blue
 
red
2.68×2.68 mm 4.75×4.75 mm
actual size
Actual size of 0.09ct Sapphire (round cut, 2.68×2.68mm, Blue color)   Actual size of 0.5ct Ruby (round cut, 4.75×4.75mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.09ct Sapphire (round cut, 2.68×2.68mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 0.5ct Ruby (round cut, 4.75×4.75mm) 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
 16% vs 29%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.09ct Sapphire Round (2.68×2.68mm, Blue) and 0.5ct Ruby Round (4.75×4.75mm, Red) 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

Sapphire and Ruby have the same specific gravity so their face-up size depends on the weight, shape and 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.


0.09 Ct Sapphire (Round) 0.5 Ct Ruby (Round)
2.68×2.68 mm vs 4.75×4.75 mm
5.64 mm²   17.72 mm²
Face-up size outline for 0.5ct Ruby (4.75×4.75mm, round cut)
Face-up size outline for 0.09ct Sapphire (2.68×2.68mm, round cut)
0.09ct Sapphire Round (2.68×2.68mm)
0.5ct Ruby Round (4.75×4.75mm)
Difference: 214% (12.08 mm²)
0.5ct Ruby (Round, 4.75×4.75mm) has approx. 214% more face-up area than 0.09ct Sapphire (Round, 2.68×2.68mm). In other words, it's 3.14x larger.


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