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7ct Sapphire (Emerald, 12.22×9.05mm, Blue) vs 2ct Ruby (Round, 7.53×7.53mm, Red)


Quick summary: When looked from above (face-up position), 7ct Sapphire (12.22×9.05mm, emerald cut) appears 2.3 times larger than 2ct Ruby (7.53×7.53mm, round cut). See below how they compare side-by-side on a ring and finger.

7ct Sapphire (emerald cut)
vs
 2ct Ruby (round cut)
blue
 
red
12.22×9.05 mm 7.53×7.53 mm
actual size
Actual size of 7ct Sapphire (emerald cut, 12.22×9.05mm, Blue color)   Actual size of 2ct Ruby (round cut, 7.53×7.53mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 7ct Sapphire (emerald cut, 12.22×9.05mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 2ct Ruby (round cut, 7.53×7.53mm) 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
 54% vs 45%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 7ct Sapphire Emerald (12.22×9.05mm, Blue) and 2ct Ruby Round (7.53×7.53mm, 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.


7 Ct Sapphire (Emerald) 2 Ct Ruby (Round)
12.22×9.05 mm vs 7.53×7.53 mm
102.85 mm²   44.53 mm²
Face-up size outline for 7ct Sapphire (12.22×9.05mm, emerald cut)
Face-up size outline for 2ct Ruby (7.53×7.53mm, round cut)
7ct Sapphire Emerald (12.22×9.05mm)
2ct Ruby Round (7.53×7.53mm)
Difference: 131% (58.32 mm²)
7ct Sapphire (Emerald, 12.22×9.05mm) has approx. 131% more face-up area than 2ct Ruby (Round, 7.53×7.53mm). In other words, it's 2.31x larger.


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