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2ct Diamond (Trillion, 9.75×9.75mm, White) vs 2.5ct Morganite (Oval, 11.7×7.8mm, Light Purple)


Quick summary: When looked from above (face-up position), 2.5ct Morganite (11.7×7.8mm, oval cut) appears 27% larger than 2ct Diamond (9.75×9.75mm, trillion cut). See below how they compare side-by-side on a ring and finger.

2ct Diamond (trillion cut)
vs
 2.5ct Morganite (oval cut)
white
 
light purple
9.75×9.75 mm 11.7×7.8 mm
actual size
Actual size of 2ct Diamond (trillion cut, 9.75×9.75mm, White color)   Actual size of 2.5ct Morganite (oval cut, 11.7×7.8mm, 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 2ct Diamond (trillion cut, 9.75×9.75mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Purple 2.5ct Morganite (oval cut, 11.7×7.8mm) 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
 58% vs 47%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 2ct Diamond Trillion (9.75×9.75mm, White) and 2.5ct Morganite Oval (11.7×7.8mm, 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.


2 Ct Diamond (Trillion) 2.5 Ct Morganite (Oval)
9.75×9.75 mm vs 11.7×7.8 mm
58.94 mm²   74.83 mm²
Face-up size outline for 2.5ct Morganite (11.7×7.8mm, oval cut)
Face-up size outline for 2ct Diamond (9.75×9.75mm, trillion cut)
2ct Diamond Trillion (9.75×9.75mm)
2.5ct Morganite Oval (11.7×7.8mm)
Difference: 27% (15.89 mm²)
2.5ct Morganite (Oval, 11.7×7.8mm) has approx. 27% more face-up area than 2ct Diamond (Trillion, 9.75×9.75mm).


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