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1.5ct Sapphire (Oval, 8.66×5.77mm, White) vs 0.75ct Ruby (Cushion, 5.08×5.08mm, Red)


Quick summary: When looked from above (face-up position), 1.5ct Sapphire (8.66×5.77mm, oval cut) appears 76% larger than 0.75ct Ruby (5.08×5.08mm, cushion cut). See below how they compare side-by-side on a ring and finger.

1.5ct Sapphire (oval cut)
vs
0.75ct Ruby (cushion cut)
white
 
red
8.66×5.77 mm 5.08×5.08 mm
actual size
Actual size of 1.5ct Sapphire (oval cut, 8.66×5.77mm, White color)   Actual size of 0.75ct Ruby (cushion cut, 5.08×5.08mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.5ct Sapphire (oval cut, 8.66×5.77mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 0.75ct Ruby (cushion cut, 5.08×5.08mm) 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 Sapphire Oval (8.66×5.77mm, White) and 0.75ct Ruby Cushion (5.08×5.08mm, 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.


1.5 Ct Sapphire (Oval) 0.75 Ct Ruby (Cushion)
8.66×5.77 mm vs 5.08×5.08 mm
40.97 mm²   23.23 mm²
Face-up size outline for 1.5ct Sapphire (8.66×5.77mm, oval cut)
Face-up size outline for 0.75ct Ruby (5.08×5.08mm, cushion cut)
1.5ct Sapphire Oval (8.66×5.77mm)
0.75ct Ruby Cushion (5.08×5.08mm)
Difference: 76% (17.74 mm²)
1.5ct Sapphire (Oval, 8.66×5.77mm) has approx. 76% more face-up area than 0.75ct Ruby (Cushion, 5.08×5.08mm).


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