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2.5ct Zircon (Radiant, 7.09×7.09mm, Orange) vs 2.5ct Sunstone (Radiant, 8.58×8.58mm, Orangey Red)


Quick summary: When looked from above (face-up position), 2.5ct Sunstone (8.58×8.58mm, radiant cut) appears 46% larger than 2.5ct Zircon (7.09×7.09mm, radiant cut). See below how they compare side-by-side on a ring and finger.

2.5ct Zircon (radiant cut)
vs
2.5ct Sunstone (radiant cut)
orange
 
orangey red
7.09×7.09 mm 8.58×8.58 mm
actual size
Actual size of 2.5ct Zircon (radiant cut, 7.09×7.09mm, Orange color)   Actual size of 2.5ct Sunstone (radiant cut, 8.58×8.58mm, 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 2.5ct Zircon (radiant cut, 7.09×7.09mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orangey Red 2.5ct Sunstone (radiant cut, 8.58×8.58mm) 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
42% vs 51%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.5ct Zircon Radiant (7.09×7.09mm, Orange) and 2.5ct Sunstone Radiant (8.58×8.58mm, 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.


2.5 Ct Zircon (Radiant) 2.5 Ct Sunstone (Radiant)
7.09×7.09 mm vs 8.58×8.58 mm
47.75 mm²   69.94 mm²
Face-up size outline for 2.5ct Sunstone (8.58×8.58mm, radiant cut)
Face-up size outline for 2.5ct Zircon (7.09×7.09mm, radiant cut)
2.5ct Zircon Radiant (7.09×7.09mm)
2.5ct Sunstone Radiant (8.58×8.58mm)
Difference: 46% (22.19 mm²)
2.5ct Sunstone (Radiant, 8.58×8.58mm) has approx. 46% more face-up area than 2.5ct Zircon (Radiant, 7.09×7.09mm).


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