×
carat vs. color  length*  width*
  ×

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

4ct Morganite (Cushion, 10.12×10.12mm, Light Purple) vs 4ct Diamond (Round, 10.32×10.32mm, White)


Quick summary: When looked from above (face-up position), 4ct Morganite (10.12×10.12mm, cushion cut) appears 10% larger than 4ct Diamond (10.32×10.32mm, round cut). See below how they compare side-by-side on a ring and finger.

4ct Morganite (cushion cut)
vs
 4ct Diamond (round cut)
light purple
 
white
10.12×10.12 mm 10.32×10.32 mm
actual size
Actual size of 4ct Morganite (cushion cut, 10.12×10.12mm, Light Purple color)   Actual size of 4ct Diamond (round cut, 10.32×10.32mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Purple 4ct Morganite (cushion cut, 10.12×10.12mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 4ct Diamond (round cut, 10.32×10.32mm) 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
 60% vs 62%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 4ct Morganite Cushion (10.12×10.12mm, Light Purple) and 4ct Diamond Round (10.32×10.32mm, 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 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.


4 Ct Morganite (Cushion) 4 Ct Diamond (Round)
10.12×10.12 mm vs 10.32×10.32 mm
92.17 mm²   83.65 mm²
Face-up size outline for 4ct Morganite (10.12×10.12mm, cushion cut)
Face-up size outline for 4ct Diamond (10.32×10.32mm, round cut)
4ct Morganite Cushion (10.12×10.12mm)
4ct Diamond Round (10.32×10.32mm)
Difference: 10% (8.52 mm²)
4ct Morganite (Cushion, 10.12×10.12mm) has approx. 10% more face-up area than 4ct Diamond (Round, 10.32×10.32mm).


Popular comparisons: