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7ct Zircon (Round, 10.88×10.88mm, White) vs 7ct Diamond (Cushion, 11.15×11.15mm, White)


Quick summary: When looked from above (face-up position), 7ct Diamond (11.15×11.15mm, cushion cut) appears 20% larger than 7ct Zircon (10.88×10.88mm, round cut). See below how they compare side-by-side on a ring and finger.

7ct Zircon (round cut)
vs
 7ct Diamond (cushion cut)
white
 
white
10.88×10.88 mm 11.15×11.15 mm
actual size
Actual size of 7ct Zircon (round cut, 10.88×10.88mm, White color)   Actual size of 7ct Diamond (cushion cut, 11.15×11.15mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 7ct Zircon (round cut, 10.88×10.88mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 7ct Diamond (cushion cut, 11.15×11.15mm) 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
 65% vs 66%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 7ct Zircon Round (10.88×10.88mm, White) and 7ct Diamond Cushion (11.15×11.15mm, White) 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 Diamond for a given carat weight, because it has higher specific gravity (4.7 vs. 3.52 - this means it's "heavier" compared to Diamond 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.


7 Ct Zircon (Round) 7 Ct Diamond (Cushion)
10.88×10.88 mm vs 11.15×11.15 mm
92.97 mm²   111.89 mm²
Face-up size outline for 7ct Diamond (11.15×11.15mm, cushion cut)
Face-up size outline for 7ct Zircon (10.88×10.88mm, round cut)
7ct Zircon Round (10.88×10.88mm)
7ct Diamond Cushion (11.15×11.15mm)
Difference: 20% (18.92 mm²)
7ct Diamond (Cushion, 11.15×11.15mm) has approx. 20% more face-up area than 7ct Zircon (Round, 10.88×10.88mm).


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