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20ct Moissanite (Trillion, 21.33×21.33mm, White) vs 20ct Zircon (Trillion, 18.8×18.8mm, Orange)


Quick summary: When looked from above (face-up position), 20ct Moissanite (21.33×21.33mm, trillion cut) appears 29% larger than 20ct Zircon (18.8×18.8mm, trillion cut). See below how they compare side-by-side on a ring and finger.

20ct Moissanite (trillion cut)
vs
 20ct Zircon (trillion cut)
white
 
orange
21.33×21.33 mm 18.8×18.8 mm
actual size
Actual size of 20ct Moissanite (trillion cut, 21.33×21.33mm, White color)   Actual size of 20ct Zircon (trillion cut, 18.8×18.8mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 20ct Moissanite (trillion cut, 21.33×21.33mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 20ct Zircon (trillion cut, 18.8×18.8mm) 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
 127% vs 112%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 20ct Moissanite Trillion (21.33×21.33mm, White) and 20ct Zircon Trillion (18.8×18.8mm, Orange) 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, Zircon will face-up smaller than Moissanite for a given carat weight, because it has higher specific gravity (4.7 vs. 3.22 - this means it's "heavier" compared to Moissanite 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.


20 Ct Moissanite (Trillion) 20 Ct Zircon (Trillion)
21.33×21.33 mm vs 18.8×18.8 mm
282.08 mm²   219.13 mm²
Face-up size outline for 20ct Moissanite (21.33×21.33mm, trillion cut)
Face-up size outline for 20ct Zircon (18.8×18.8mm, trillion cut)
20ct Moissanite Trillion (21.33×21.33mm)
20ct Zircon Trillion (18.8×18.8mm)
Difference: 29% (62.95 mm²)
20ct Moissanite (Trillion, 21.33×21.33mm) has approx. 29% more face-up area than 20ct Zircon (Trillion, 18.8×18.8mm).


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