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3ct Sapphire (Trillion, 10.14×10.14mm, Blue) vs 4ct Sapphire (Oval, 12×8mm, Blue)


Quick summary: When looked from above (face-up position), 4ct Sapphire (12×8mm, oval cut) appears 23% larger than 3ct Sapphire (10.14×10.14mm, trillion cut). See below how they compare side-by-side on a ring and finger.

3ct Sapphire (trillion cut)
vs
 4ct Sapphire (oval cut)
blue
 
blue
10.14×10.14 mm 12×8 mm
actual size
Actual size of 3ct Sapphire (trillion cut, 10.14×10.14mm, Blue color)   Actual size of 4ct Sapphire (oval cut, 12×8mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 3ct Sapphire (trillion cut, 10.14×10.14mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 4ct Sapphire (oval cut, 12×8mm) 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
 61% vs 48%
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Ring diameter: 16.9 mm
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Actual sizes of 3ct Sapphire Trillion (10.14×10.14mm, Blue) and 4ct Sapphire Oval (12×8mm, 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

The face-up size depends on the shape of the gem, its weight and the 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.


3 Ct Sapphire (Trillion) 4 Ct Sapphire (Oval)
10.14×10.14 mm vs 12×8 mm
63.75 mm²   78.72 mm²
Face-up size outline for 4ct Sapphire (12×8mm, oval cut)
Face-up size outline for 3ct Sapphire (10.14×10.14mm, trillion cut)
3ct Sapphire Trillion (10.14×10.14mm)
4ct Sapphire Oval (12×8mm)
Difference: 23% (14.97 mm²)
4ct Sapphire (Oval, 12×8mm) has approx. 23% more face-up area than 3ct Sapphire (Trillion, 10.14×10.14mm).


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