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1.5ct Ruby (Oval, 8.66×5.77mm, Red) vs 1.25ct Sapphire (Emerald, 6.89×5.1mm, Light Blue)


Quick summary: When looked from above (face-up position), 1.5ct Ruby (8.66×5.77mm, oval cut) appears 25% larger than 1.25ct Sapphire (6.89×5.1mm, emerald cut). See below how they compare side-by-side on a ring and finger.

1.5ct Ruby (oval cut)
vs
 1.25ct Sapphire (emerald cut)
red
 
light blue
8.66×5.77 mm 6.89×5.1 mm
actual size
Actual size of 1.5ct Ruby (oval cut, 8.66×5.77mm, Red color)   Actual size of 1.25ct Sapphire (emerald cut, 6.89×5.1mm, Light Blue 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 (oval cut, 8.66×5.77mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 1.25ct Sapphire (emerald cut, 6.89×5.1mm) 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
 35% vs 31%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.5ct Ruby Oval (8.66×5.77mm, Red) and 1.25ct Sapphire Emerald (6.89×5.1mm, Light Blue) 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 (Oval) 1.25 Ct Sapphire (Emerald)
8.66×5.77 mm vs 6.89×5.1 mm
40.97 mm²   32.68 mm²
Face-up size outline for 1.5ct Ruby (8.66×5.77mm, oval cut)
Face-up size outline for 1.25ct Sapphire (6.89×5.1mm, emerald cut)
1.5ct Ruby Oval (8.66×5.77mm)
1.25ct Sapphire Emerald (6.89×5.1mm)
Difference: 25% (8.29 mm²)
1.5ct Ruby (Oval, 8.66×5.77mm) has approx. 25% more face-up area than 1.25ct Sapphire (Emerald, 6.89×5.1mm).


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