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4.5ct Diaspore (Cabochon, 11.93×7.95mm, Light Yellowish Green) vs 4.5ct Zircon (Cabochon, 10.71×7.14mm, Orange)


Quick summary: When looked from above (face-up position), 4.5ct Diaspore (11.93×7.95mm, cabochon cut) appears 24% larger than 4.5ct Zircon (10.71×7.14mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

4.5ct Diaspore (cabochon cut)
vs
4.5ct Zircon (cabochon cut)
light yellowish green
 
orange
11.93×7.95 mm 10.71×7.14 mm
actual size
Actual size of 4.5ct Diaspore (cabochon cut, 11.93×7.95mm, Light Yellowish Green color)   Actual size of 4.5ct Zircon (cabochon cut, 10.71×7.14mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Yellowish Green 4.5ct Diaspore (cabochon cut, 11.93×7.95mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 4.5ct Zircon (cabochon cut, 10.71×7.14mm) 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
48% vs 43%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 4.5ct Diaspore Cabochon (11.93×7.95mm, Light Yellowish Green) and 4.5ct Zircon Cabochon (10.71×7.14mm, 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 Diaspore for a given carat weight, because it has higher specific gravity (4.7 vs. 3.4 - this means it's "heavier" compared to Diaspore 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.


4.5 Ct Diaspore (Cabochon) 4.5 Ct Zircon (Cabochon)
11.93×7.95 mm vs 10.71×7.14 mm
77.77 mm²   62.7 mm²
Face-up size outline for 4.5ct Diaspore (11.93×7.95mm, cabochon cut)
Face-up size outline for 4.5ct Zircon (10.71×7.14mm, cabochon cut)
4.5ct Diaspore Cabochon (11.93×7.95mm)
4.5ct Zircon Cabochon (10.71×7.14mm)
Difference: 24% (15.07 mm²)
4.5ct Diaspore (Cabochon, 11.93×7.95mm) has approx. 24% more face-up area than 4.5ct Zircon (Cabochon, 10.71×7.14mm).


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