×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

3ct Diamond (Trillion, 11.16×11.16mm, White) vs 2.5ct Diamond (Cabochon, 9.69×6.46mm, White)


Quick summary: When looked from above (face-up position), 3ct Diamond (11.16×11.16mm, trillion cut) appears 50% larger than 2.5ct Diamond (9.69×6.46mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

3ct Diamond (trillion cut)
vs
 2.5ct Diamond (cabochon cut)
white
 
white
11.16×11.16 mm 9.69×6.46 mm
actual size
Actual size of 3ct Diamond (trillion cut, 11.16×11.16mm, White color)   Actual size of 2.5ct Diamond (cabochon cut, 9.69×6.46mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 3ct Diamond (trillion cut, 11.16×11.16mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 2.5ct Diamond (cabochon cut, 9.69×6.46mm) 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
 67% vs 39%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 3ct Diamond Trillion (11.16×11.16mm, White) and 2.5ct Diamond Cabochon (9.69×6.46mm, White) 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 Diamond (Trillion) 2.5 Ct Diamond (Cabochon)
11.16×11.16 mm vs 9.69×6.46 mm
77.22 mm²   51.33 mm²
Face-up size outline for 3ct Diamond (11.16×11.16mm, trillion cut)
Face-up size outline for 2.5ct Diamond (9.69×6.46mm, cabochon cut)
3ct Diamond Trillion (11.16×11.16mm)
2.5ct Diamond Cabochon (9.69×6.46mm)
Difference: 50% (25.89 mm²)
3ct Diamond (Trillion, 11.16×11.16mm) has approx. 50% more face-up area than 2.5ct Diamond (Cabochon, 9.69×6.46mm).


Popular comparisons: