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5ct Quartz (Trillion, 13.79×13.79mm, Orangey Red) vs 5ct Amethyst (Round, 11.73×11.73mm, Violet)


Quick summary: When looked from above (face-up position), 5ct Quartz (13.79×13.79mm, trillion cut) appears 9% larger than 5ct Amethyst (11.73×11.73mm, round cut). See below how they compare side-by-side on a ring and finger.

5ct Quartz (trillion cut)
vs
 5ct Amethyst (round cut)
orangey red
 
violet
13.79×13.79 mm 11.73×11.73 mm
actual size
Actual size of 5ct Quartz (trillion cut, 13.79×13.79mm, Orangey Red color)   Actual size of 5ct Amethyst (round cut, 11.73×11.73mm, Violet color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Orangey Red 5ct Quartz (trillion cut, 13.79×13.79mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Violet 5ct Amethyst (round cut, 11.73×11.73mm) 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
 82% vs 70%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 5ct Quartz Trillion (13.79×13.79mm, Orangey Red) and 5ct Amethyst Round (11.73×11.73mm, 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

Quartz and Amethyst have the same specific gravity so their face-up size depends on the weight, shape and 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 Ct Quartz (Trillion) 5 Ct Amethyst (Round)
13.79×13.79 mm vs 11.73×11.73 mm
117.9 mm²   108.07 mm²
Face-up size outline for 5ct Quartz (13.79×13.79mm, trillion cut)
Face-up size outline for 5ct Amethyst (11.73×11.73mm, round cut)
5ct Quartz Trillion (13.79×13.79mm)
5ct Amethyst Round (11.73×11.73mm)
Difference: 9% (9.83 mm²)
5ct Quartz (Trillion, 13.79×13.79mm) has approx. 9% more face-up area than 5ct Amethyst (Round, 11.73×11.73mm).


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