×
carat vs. color  length*  width*
  ×

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

0.8ct Peridot (Round, 5.89×5.89mm, Yellowish Green) vs 0.25ct Diamond (Princess, 3.47×3.47mm, White)


Quick summary: When looked from above (face-up position), 0.8ct Peridot (5.89×5.89mm, round cut) appears 2.3 times larger than 0.25ct Diamond (3.47×3.47mm, princess cut). See below how they compare side-by-side on a ring and finger.

0.8ct Peridot (round cut)
vs
 0.25ct Diamond (princess cut)
yellowish green
 
white
5.89×5.89 mm 3.47×3.47 mm
actual size
Actual size of 0.8ct Peridot (round cut, 5.89×5.89mm, Yellowish Green color)   Actual size of 0.25ct Diamond (princess cut, 3.47×3.47mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Yellowish Green 0.8ct Peridot (round cut, 5.89×5.89mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.25ct Diamond (princess cut, 3.47×3.47mm) 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 21%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.8ct Peridot Round (5.89×5.89mm, Yellowish Green) and 0.25ct Diamond Princess (3.47×3.47mm, 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

All things being equal, Diamond will face-up smaller than Peridot for a given carat weight, because it has higher specific gravity (3.52 vs. 3.34 - this means it's "heavier" compared to Peridot of the same size). Face-up size also depends heavily on 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.


0.8 Ct Peridot (Round) 0.25 Ct Diamond (Princess)
5.89×5.89 mm vs 3.47×3.47 mm
27.25 mm²   12.04 mm²
Face-up size outline for 0.8ct Peridot (5.89×5.89mm, round cut)
Face-up size outline for 0.25ct Diamond (3.47×3.47mm, princess cut)
0.8ct Peridot Round (5.89×5.89mm)
0.25ct Diamond Princess (3.47×3.47mm)
Difference: 126% (15.21 mm²)
0.8ct Peridot (Round, 5.89×5.89mm) has approx. 126% more face-up area than 0.25ct Diamond (Princess, 3.47×3.47mm). In other words, it's 2.26x larger.


Popular comparisons: