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0.5ct Sapphire (Emerald, 5.06×3.75mm, Blue) vs 0.3ct Ruby (Emerald, 4.28×3.17mm, Red)


Quick summary: When looked from above (face-up position), 0.5ct Sapphire (5.06×3.75mm, emerald cut) appears 40% larger than 0.3ct Ruby (4.28×3.17mm, emerald cut). See below how they compare side-by-side on a ring and finger.

0.5ct Sapphire (emerald cut)
vs
 0.3ct Ruby (emerald cut)
blue
 
red
5.06×3.75 mm 4.28×3.17 mm
actual size
Actual size of 0.5ct Sapphire (emerald cut, 5.06×3.75mm, Blue color)   Actual size of 0.3ct Ruby (emerald cut, 4.28×3.17mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.5ct Sapphire (emerald cut, 5.06×3.75mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 0.3ct Ruby (emerald cut, 4.28×3.17mm) 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
 23% vs 19%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.5ct Sapphire Emerald (5.06×3.75mm, Blue) and 0.3ct Ruby Emerald (4.28×3.17mm, 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.


0.5 Ct Sapphire (Emerald) 0.3 Ct Ruby (Emerald)
5.06×3.75 mm vs 4.28×3.17 mm
17.65 mm²   12.62 mm²
Face-up size outline for 0.5ct Sapphire (5.06×3.75mm, emerald cut)
Face-up size outline for 0.3ct Ruby (4.28×3.17mm, emerald cut)
0.5ct Sapphire Emerald (5.06×3.75mm)
0.3ct Ruby Emerald (4.28×3.17mm)
Difference: 40% (5.03 mm²)
0.5ct Sapphire (Emerald, 5.06×3.75mm) has approx. 40% more face-up area than 0.3ct Ruby (Emerald, 4.28×3.17mm).


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