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0.8ct Sapphire (Pear, 7.7×4.64mm, Blue) vs 0.3ct Ruby (Oval, 5.07×3.38mm, Red)


Quick summary: When looked from above (face-up position), 0.8ct Sapphire (7.7×4.64mm, pear cut) appears 86% larger than 0.3ct Ruby (5.07×3.38mm, oval cut). See below how they compare side-by-side on a ring and finger.

0.8ct Sapphire (pear cut)
vs
 0.3ct Ruby (oval cut)
blue
 
red
7.7×4.64 mm 5.07×3.38 mm
actual size
Actual size of 0.8ct Sapphire (pear cut, 7.7×4.64mm, Blue color)   Actual size of 0.3ct Ruby (oval cut, 5.07×3.38mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.8ct Sapphire (pear cut, 7.7×4.64mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 0.3ct Ruby (oval cut, 5.07×3.38mm) 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
 28% vs 20%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.8ct Sapphire Pear (7.7×4.64mm, Blue) and 0.3ct Ruby Oval (5.07×3.38mm, 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.


0.8 Ct Sapphire (Pear) 0.3 Ct Ruby (Oval)
7.7×4.64 mm vs 5.07×3.38 mm
26.08 mm²   14.05 mm²
Face-up size outline for 0.8ct Sapphire (7.7×4.64mm, pear cut)
Face-up size outline for 0.3ct Ruby (5.07×3.38mm, oval cut)
0.8ct Sapphire Pear (7.7×4.64mm)
0.3ct Ruby Oval (5.07×3.38mm)
Difference: 86% (12.03 mm²)
0.8ct Sapphire (Pear, 7.7×4.64mm) has approx. 86% more face-up area than 0.3ct Ruby (Oval, 5.07×3.38mm).


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