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5.5ct Rhodolite (Trillion, 13.08×13.08mm, Purple) vs 5.5ct Amethyst (Trillion, 14.8×14.8mm, Violet)


Quick summary: When looked from above (face-up position), 5.5ct Amethyst (14.8×14.8mm, trillion cut) appears 28% larger than 5.5ct Rhodolite (13.08×13.08mm, trillion cut). See below how they compare side-by-side on a ring and finger.

5.5ct Rhodolite (trillion cut)
vs
5.5ct Amethyst (trillion cut)
purple
 
violet
13.08×13.08 mm 14.8×14.8 mm
actual size
Actual size of 5.5ct Rhodolite (trillion cut, 13.08×13.08mm, Purple color)   Actual size of 5.5ct Amethyst (trillion cut, 14.8×14.8mm, Violet color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Purple 5.5ct Rhodolite (trillion cut, 13.08×13.08mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Violet 5.5ct Amethyst (trillion cut, 14.8×14.8mm) 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
78% vs 88%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 5.5ct Rhodolite Trillion (13.08×13.08mm, Purple) and 5.5ct Amethyst Trillion (14.8×14.8mm, Violet) 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, Rhodolite will face-up smaller than Amethyst for a given carat weight, because it has higher specific gravity (3.84 vs. 2.65 - this means it's "heavier" compared to Amethyst 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.


5.5 Ct Rhodolite (Trillion) 5.5 Ct Amethyst (Trillion)
13.08×13.08 mm vs 14.8×14.8 mm
106.07 mm²   135.8 mm²
Face-up size outline for 5.5ct Amethyst (14.8×14.8mm, trillion cut)
Face-up size outline for 5.5ct Rhodolite (13.08×13.08mm, trillion cut)
5.5ct Rhodolite Trillion (13.08×13.08mm)
5.5ct Amethyst Trillion (14.8×14.8mm)
Difference: 28% (29.73 mm²)
5.5ct Amethyst (Trillion, 14.8×14.8mm) has approx. 28% more face-up area than 5.5ct Rhodolite (Trillion, 13.08×13.08mm).


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