×
carat vs. color  length*  width*
  ×

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

17ct Aquamarine (Princess, 15.36×15.36mm, Light Blue) vs 17ct Diamond (Princess, 14.17×14.17mm, White)


Quick summary: When looked from above (face-up position), 17ct Aquamarine (15.36×15.36mm, princess cut) appears 18% larger than 17ct Diamond (14.17×14.17mm, princess cut). See below how they compare side-by-side on a ring and finger.

17ct Aquamarine (princess cut)
vs
17ct Diamond (princess cut)
light blue
 
white
15.36×15.36 mm 14.17×14.17 mm
actual size
Actual size of 17ct Aquamarine (princess cut, 15.36×15.36mm, Light Blue color)   Actual size of 17ct Diamond (princess cut, 14.17×14.17mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Blue 17ct Aquamarine (princess cut, 15.36×15.36mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 17ct Diamond (princess cut, 14.17×14.17mm) 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
91% vs 84%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 17ct Aquamarine Princess (15.36×15.36mm, Light Blue) and 17ct Diamond Princess (14.17×14.17mm, 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 Aquamarine for a given carat weight, because it has higher specific gravity (3.52 vs. 2.72 - this means it's "heavier" compared to Aquamarine 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.


17 Ct Aquamarine (Princess) 17 Ct Diamond (Princess)
15.36×15.36 mm vs 14.17×14.17 mm
235.93 mm²   200.79 mm²
Face-up size outline for 17ct Aquamarine (15.36×15.36mm, princess cut)
Face-up size outline for 17ct Diamond (14.17×14.17mm, princess cut)
17ct Aquamarine Princess (15.36×15.36mm)
17ct Diamond Princess (14.17×14.17mm)
Difference: 18% (35.14 mm²)
17ct Aquamarine (Princess, 15.36×15.36mm) has approx. 18% more face-up area than 17ct Diamond (Princess, 14.17×14.17mm).


Popular comparisons: