×
carat vs. color  length*  width*
  ×

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

13ct Diamond (Round, 15.28×15.28mm, White) vs 13ct Morganite (Round, 16.02×16.02mm, Light Purple)


Quick summary: When looked from above (face-up position), 13ct Morganite (16.02×16.02mm, round cut) appears 10% larger than 13ct Diamond (15.28×15.28mm, round cut). See below how they compare side-by-side on a ring and finger.

13ct Diamond (round cut)
vs
 13ct Morganite (round cut)
white
 
light purple
15.28×15.28 mm 16.02×16.02 mm
actual size
Actual size of 13ct Diamond (round cut, 15.28×15.28mm, White color)   Actual size of 13ct Morganite (round cut, 16.02×16.02mm, Light Purple color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 13ct Diamond (round cut, 15.28×15.28mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Purple 13ct Morganite (round cut, 16.02×16.02mm) 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 95%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 13ct Diamond Round (15.28×15.28mm, White) and 13ct Morganite Round (16.02×16.02mm, Light Purple) 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 Morganite for a given carat weight, because it has higher specific gravity (3.52 vs. 2.8 - this means it's "heavier" compared to Morganite 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 Diamond (Round) 13 Ct Morganite (Round)
15.28×15.28 mm vs 16.02×16.02 mm
183.37 mm²   201.56 mm²
Face-up size outline for 13ct Morganite (16.02×16.02mm, round cut)
Face-up size outline for 13ct Diamond (15.28×15.28mm, round cut)
13ct Diamond Round (15.28×15.28mm)
13ct Morganite Round (16.02×16.02mm)
Difference: 10% (18.19 mm²)
13ct Morganite (Round, 16.02×16.02mm) has approx. 10% more face-up area than 13ct Diamond (Round, 15.28×15.28mm).


Popular comparisons: