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12ct Moissanite (Marquise, 23.92×11.96mm, White) vs 12ct Zircon (Marquise, 21.1×10.55mm, Orange)


Quick summary: When looked from above (face-up position), 12ct Moissanite (23.92×11.96mm, marquise cut) appears 29% larger than 12ct Zircon (21.1×10.55mm, marquise cut). See below how they compare side-by-side on a ring and finger.

12ct Moissanite (marquise cut)
vs
12ct Zircon (marquise cut)
white
 
orange
23.92×11.96 mm 21.1×10.55 mm
actual size
Actual size of 12ct Moissanite (marquise cut, 23.92×11.96mm, White color)   Actual size of 12ct Zircon (marquise cut, 21.1×10.55mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 12ct Moissanite (marquise cut, 23.92×11.96mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 12ct Zircon (marquise cut, 21.1×10.55mm) 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
71% vs 63%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 12ct Moissanite Marquise (23.92×11.96mm, White) and 12ct Zircon Marquise (21.1×10.55mm, 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.


12 Ct Moissanite (Marquise) 12 Ct Zircon (Marquise)
23.92×11.96 mm vs 21.1×10.55 mm
203.12 mm²   158.05 mm²
Face-up size outline for 12ct Moissanite (23.92×11.96mm, marquise cut)
Face-up size outline for 12ct Zircon (21.1×10.55mm, marquise cut)
12ct Moissanite Marquise (23.92×11.96mm)
12ct Zircon Marquise (21.1×10.55mm)
Difference: 29% (45.07 mm²)
12ct Moissanite (Marquise, 23.92×11.96mm) has approx. 29% more face-up area than 12ct Zircon (Marquise, 21.1×10.55mm).


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