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0.5ct Zircon (Cabochon, 5.15×3.43mm, Orange) vs 0.5ct Sapphire (Cabochon, 5.43×3.62mm, Blue)


Quick summary: When looked from above (face-up position), 0.5ct Sapphire (5.43×3.62mm, cabochon cut) appears 11% larger than 0.5ct Zircon (5.15×3.43mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

0.5ct Zircon (cabochon cut)
vs
 0.5ct Sapphire (cabochon cut)
orange
 
blue
5.15×3.43 mm 5.43×3.62 mm
actual size
Actual size of 0.5ct Zircon (cabochon cut, 5.15×3.43mm, Orange color)   Actual size of 0.5ct Sapphire (cabochon cut, 5.43×3.62mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Orange 0.5ct Zircon (cabochon cut, 5.15×3.43mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 0.5ct Sapphire (cabochon cut, 5.43×3.62mm) 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
 21% vs 22%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.5ct Zircon Cabochon (5.15×3.43mm, Orange) and 0.5ct Sapphire Cabochon (5.43×3.62mm, Blue) 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 Sapphire for a given carat weight, because it has higher specific gravity (4.7 vs. 4 - this means it's "heavier" compared to Sapphire 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.


0.5 Ct Zircon (Cabochon) 0.5 Ct Sapphire (Cabochon)
5.15×3.43 mm vs 5.43×3.62 mm
14.48 mm²   16.12 mm²
Face-up size outline for 0.5ct Sapphire (5.43×3.62mm, cabochon cut)
Face-up size outline for 0.5ct Zircon (5.15×3.43mm, cabochon cut)
0.5ct Zircon Cabochon (5.15×3.43mm)
0.5ct Sapphire Cabochon (5.43×3.62mm)
Difference: 11% (1.64 mm²)
0.5ct Sapphire (Cabochon, 5.43×3.62mm) has approx. 11% more face-up area than 0.5ct Zircon (Cabochon, 5.15×3.43mm).


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