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0.3ct Sapphire (Trillion, 4.71×4.71mm, Blue) vs 0.4ct Ruby (Cushion, 4.12×4.12mm, Red)


Quick summary: When looked from above (face-up position), 0.4ct Ruby (4.12×4.12mm, cushion cut) appears 11% larger than 0.3ct Sapphire (4.71×4.71mm, trillion cut). See below how they compare side-by-side on a ring and finger.

0.3ct Sapphire (trillion cut)
vs
 0.4ct Ruby (cushion cut)
blue
 
red
4.71×4.71 mm 4.12×4.12 mm
actual size
Actual size of 0.3ct Sapphire (trillion cut, 4.71×4.71mm, Blue color)   Actual size of 0.4ct Ruby (cushion cut, 4.12×4.12mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.3ct Sapphire (trillion cut, 4.71×4.71mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 0.4ct Ruby (cushion cut, 4.12×4.12mm) 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 25%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.3ct Sapphire Trillion (4.71×4.71mm, Blue) and 0.4ct Ruby Cushion (4.12×4.12mm, 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.


0.3 Ct Sapphire (Trillion) 0.4 Ct Ruby (Cushion)
4.71×4.71 mm vs 4.12×4.12 mm
13.75 mm²   15.28 mm²
Face-up size outline for 0.4ct Ruby (4.12×4.12mm, cushion cut)
Face-up size outline for 0.3ct Sapphire (4.71×4.71mm, trillion cut)
0.3ct Sapphire Trillion (4.71×4.71mm)
0.4ct Ruby Cushion (4.12×4.12mm)
Difference: 11% (1.53 mm²)
0.4ct Ruby (Cushion, 4.12×4.12mm) has approx. 11% more face-up area than 0.3ct Sapphire (Trillion, 4.71×4.71mm).


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