×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

8.5ct Zircon (Princess, 10.16×10.16mm, Orange) vs 8.5ct Sunstone (Princess, 12.3×12.3mm, Orangey Red)


Quick summary: When looked from above (face-up position), 8.5ct Sunstone (12.3×12.3mm, princess cut) appears 47% larger than 8.5ct Zircon (10.16×10.16mm, princess cut). See below how they compare side-by-side on a ring and finger.

8.5ct Zircon (princess cut)
vs
8.5ct Sunstone (princess cut)
orange
 
orangey red
10.16×10.16 mm 12.3×12.3 mm
actual size
Actual size of 8.5ct Zircon (princess cut, 10.16×10.16mm, Orange color)   Actual size of 8.5ct Sunstone (princess cut, 12.3×12.3mm, Orangey Red color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Orange 8.5ct Zircon (princess cut, 10.16×10.16mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orangey Red 8.5ct Sunstone (princess cut, 12.3×12.3mm) 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
61% vs 73%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 8.5ct Zircon Princess (10.16×10.16mm, Orange) and 8.5ct Sunstone Princess (12.3×12.3mm, Orangey Red) 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 Sunstone for a given carat weight, because it has higher specific gravity (4.7 vs. 2.65 - this means it's "heavier" compared to Sunstone 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.


8.5 Ct Zircon (Princess) 8.5 Ct Sunstone (Princess)
10.16×10.16 mm vs 12.3×12.3 mm
103.23 mm²   151.29 mm²
Face-up size outline for 8.5ct Sunstone (12.3×12.3mm, princess cut)
Face-up size outline for 8.5ct Zircon (10.16×10.16mm, princess cut)
8.5ct Zircon Princess (10.16×10.16mm)
8.5ct Sunstone Princess (12.3×12.3mm)
Difference: 47% (48.06 mm²)
8.5ct Sunstone (Princess, 12.3×12.3mm) has approx. 47% more face-up area than 8.5ct Zircon (Princess, 10.16×10.16mm).


Popular comparisons: