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0.5ct Ruby (Emerald, 5.06×3.75mm, Red) vs 4ct Sapphire (Emerald, 10.14×7.51mm, Yellow)


Quick summary: When looked from above (face-up position), 4ct Sapphire (10.14×7.51mm, emerald cut) appears 4 times larger than 0.5ct Ruby (5.06×3.75mm, emerald cut). See below how they compare side-by-side on a ring and finger.

0.5ct Ruby (emerald cut)
vs
4ct Sapphire (emerald cut)
red
 
yellow
5.06×3.75 mm 10.14×7.51 mm
actual size
Actual size of 0.5ct Ruby (emerald cut, 5.06×3.75mm, Red color)   Actual size of 4ct Sapphire (emerald cut, 10.14×7.51mm, Yellow color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 0.5ct Ruby (emerald cut, 5.06×3.75mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Yellow 4ct Sapphire (emerald cut, 10.14×7.51mm) 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 45%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.5ct Ruby Emerald (5.06×3.75mm, Red) and 4ct Sapphire Emerald (10.14×7.51mm, 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

Ruby and Sapphire 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 Ruby (Emerald) 4 Ct Sapphire (Emerald)
5.06×3.75 mm vs 10.14×7.51 mm
17.65 mm²   70.82 mm²
Face-up size outline for 4ct Sapphire (10.14×7.51mm, emerald cut)
Face-up size outline for 0.5ct Ruby (5.06×3.75mm, emerald cut)
0.5ct Ruby Emerald (5.06×3.75mm)
4ct Sapphire Emerald (10.14×7.51mm)
Difference: 301% (53.17 mm²)
4ct Sapphire (Emerald, 10.14×7.51mm) has approx. 301% more face-up area than 0.5ct Ruby (Emerald, 5.06×3.75mm). In other words, it's 4.01x larger.


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