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6.5ct Zircon (Radiant, 9.74×9.74mm, Orange) vs 6.5ct Sunstone (Radiant, 11.79×11.79mm, Orangey Red)


Quick summary: When looked from above (face-up position), 6.5ct Sunstone (11.79×11.79mm, radiant cut) appears 47% larger than 6.5ct Zircon (9.74×9.74mm, radiant cut). See below how they compare side-by-side on a ring and finger.

6.5ct Zircon (radiant cut)
vs
6.5ct Sunstone (radiant cut)
orange
 
orangey red
9.74×9.74 mm 11.79×11.79 mm
actual size
Actual size of 6.5ct Zircon (radiant cut, 9.74×9.74mm, Orange color)   Actual size of 6.5ct Sunstone (radiant cut, 11.79×11.79mm, 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 6.5ct Zircon (radiant cut, 9.74×9.74mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orangey Red 6.5ct Sunstone (radiant cut, 11.79×11.79mm) 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
58% vs 70%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 6.5ct Zircon Radiant (9.74×9.74mm, Orange) and 6.5ct Sunstone Radiant (11.79×11.79mm, 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.


6.5 Ct Zircon (Radiant) 6.5 Ct Sunstone (Radiant)
9.74×9.74 mm vs 11.79×11.79 mm
90.12 mm²   132.05 mm²
Face-up size outline for 6.5ct Sunstone (11.79×11.79mm, radiant cut)
Face-up size outline for 6.5ct Zircon (9.74×9.74mm, radiant cut)
6.5ct Zircon Radiant (9.74×9.74mm)
6.5ct Sunstone Radiant (11.79×11.79mm)
Difference: 47% (41.93 mm²)
6.5ct Sunstone (Radiant, 11.79×11.79mm) has approx. 47% more face-up area than 6.5ct Zircon (Radiant, 9.74×9.74mm).


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