×
carat vs. color  length*  width*
  ×

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

13ct Aquamarine (Asscher, 14.25×14.25mm, Light Blue) vs 13ct Diamond (Asscher, 13.2×13.2mm, White)


Quick summary: When looked from above (face-up position), 13ct Aquamarine (14.25×14.25mm, asscher cut) appears 17% larger than 13ct Diamond (13.2×13.2mm, asscher cut). See below how they compare side-by-side on a ring and finger.

13ct Aquamarine (asscher cut)
vs
 13ct Diamond (asscher cut)
light blue
 
white
14.25×14.25 mm 13.2×13.2 mm
actual size
Actual size of 13ct Aquamarine (asscher cut, 14.25×14.25mm, Light Blue color)   Actual size of 13ct Diamond (asscher cut, 13.2×13.2mm, 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 13ct Aquamarine (asscher cut, 14.25×14.25mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 13ct Diamond (asscher cut, 13.2×13.2mm) 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
 85% vs 79%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 13ct Aquamarine Asscher (14.25×14.25mm, Light Blue) and 13ct Diamond Asscher (13.2×13.2mm, 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.


13 Ct Aquamarine (Asscher) 13 Ct Diamond (Asscher)
14.25×14.25 mm vs 13.2×13.2 mm
186.82 mm²   160.3 mm²
Face-up size outline for 13ct Aquamarine (14.25×14.25mm, asscher cut)
Face-up size outline for 13ct Diamond (13.2×13.2mm, asscher cut)
13ct Aquamarine Asscher (14.25×14.25mm)
13ct Diamond Asscher (13.2×13.2mm)
Difference: 17% (26.52 mm²)
13ct Aquamarine (Asscher, 14.25×14.25mm) has approx. 17% more face-up area than 13ct Diamond (Asscher, 13.2×13.2mm).


Popular comparisons: