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4ct Morganite (Oval, 13.68×9.12mm, Light Purple) vs 3.5ct Diamond (Oval, 12.32×8.21mm, White)


Quick summary: When looked from above (face-up position), 4ct Morganite (13.68×9.12mm, oval cut) appears 23% larger than 3.5ct Diamond (12.32×8.21mm, oval cut). See below how they compare side-by-side on a ring and finger.

4ct Morganite (oval cut)
vs
 3.5ct Diamond (oval cut)
light purple
 
white
13.68×9.12 mm 12.32×8.21 mm
actual size
Actual size of 4ct Morganite (oval cut, 13.68×9.12mm, Light Purple color)   Actual size of 3.5ct Diamond (oval cut, 12.32×8.21mm, 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 (oval cut, 13.68×9.12mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 3.5ct Diamond (oval cut, 12.32×8.21mm) 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
 54% vs 49%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 4ct Morganite Oval (13.68×9.12mm, Light Purple) and 3.5ct Diamond Oval (12.32×8.21mm, 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 (Oval) 3.5 Ct Diamond (Oval)
13.68×9.12 mm vs 12.32×8.21 mm
102.3 mm²   82.94 mm²
Face-up size outline for 4ct Morganite (13.68×9.12mm, oval cut)
Face-up size outline for 3.5ct Diamond (12.32×8.21mm, oval cut)
4ct Morganite Oval (13.68×9.12mm)
3.5ct Diamond Oval (12.32×8.21mm)
Difference: 23% (19.36 mm²)
4ct Morganite (Oval, 13.68×9.12mm) has approx. 23% more face-up area than 3.5ct Diamond (Oval, 12.32×8.21mm).


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