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14ct Topaz (Trillion, 18.37×18.37mm, Blue) vs 14ct Quartz (Trillion, 20.21×20.21mm, Brown)


Quick summary: When looked from above (face-up position), 14ct Quartz (20.21×20.21mm, trillion cut) appears 21% larger than 14ct Topaz (18.37×18.37mm, trillion cut). See below how they compare side-by-side on a ring and finger.

14ct Topaz (trillion cut)
vs
 14ct Quartz (trillion cut)
blue
 
brown
18.37×18.37 mm 20.21×20.21 mm
actual size
Actual size of 14ct Topaz (trillion cut, 18.37×18.37mm, Blue color)   Actual size of 14ct Quartz (trillion cut, 20.21×20.21mm, Brown color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 14ct Topaz (trillion cut, 18.37×18.37mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Brown 14ct Quartz (trillion cut, 20.21×20.21mm) 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
 109% vs 120%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 14ct Topaz Trillion (18.37×18.37mm, Blue) and 14ct Quartz Trillion (20.21×20.21mm, Brown) 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, Topaz will face-up smaller than Quartz for a given carat weight, because it has higher specific gravity (3.53 vs. 2.65 - this means it's "heavier" compared to Quartz 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.


14 Ct Topaz (Trillion) 14 Ct Quartz (Trillion)
18.37×18.37 mm vs 20.21×20.21 mm
209.22 mm²   253.24 mm²
Face-up size outline for 14ct Quartz (20.21×20.21mm, trillion cut)
Face-up size outline for 14ct Topaz (18.37×18.37mm, trillion cut)
14ct Topaz Trillion (18.37×18.37mm)
14ct Quartz Trillion (20.21×20.21mm)
Difference: 21% (44.02 mm²)
14ct Quartz (Trillion, 20.21×20.21mm) has approx. 21% more face-up area than 14ct Topaz (Trillion, 18.37×18.37mm).


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