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1.5ct Ruby (Round, 6.84×6.84mm, Red) vs 4.9ct Sapphire (Oval, 12.84×8.56mm, Light Yellow)


Quick summary: When looked from above (face-up position), 4.9ct Sapphire (12.84×8.56mm, oval cut) appears 2.5 times larger than 1.5ct Ruby (6.84×6.84mm, round cut). See below how they compare side-by-side on a ring and finger.

1.5ct Ruby (round cut)
vs
 4.9ct Sapphire (oval cut)
red
 
light yellow
6.84×6.84 mm 12.84×8.56 mm
actual size
Actual size of 1.5ct Ruby (round cut, 6.84×6.84mm, Red color)   Actual size of 4.9ct Sapphire (oval cut, 12.84×8.56mm, Light Yellow color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 1.5ct Ruby (round cut, 6.84×6.84mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Yellow 4.9ct Sapphire (oval cut, 12.84×8.56mm) 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
 41% vs 51%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.5ct Ruby Round (6.84×6.84mm, Red) and 4.9ct Sapphire Oval (12.84×8.56mm, Light 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.


1.5 Ct Ruby (Round) 4.9 Ct Sapphire (Oval)
6.84×6.84 mm vs 12.84×8.56 mm
36.75 mm²   90.13 mm²
Face-up size outline for 4.9ct Sapphire (12.84×8.56mm, oval cut)
Face-up size outline for 1.5ct Ruby (6.84×6.84mm, round cut)
1.5ct Ruby Round (6.84×6.84mm)
4.9ct Sapphire Oval (12.84×8.56mm)
Difference: 145% (53.38 mm²)
4.9ct Sapphire (Oval, 12.84×8.56mm) has approx. 145% more face-up area than 1.5ct Ruby (Round, 6.84×6.84mm). In other words, it's 2.45x larger.


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