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5ct Diamond (Cushion, 10.5×9.4mm, White) vs 11ct Topaz (Cushion, 13×12.96mm, Blue)


Quick summary: When looked from above (face-up position), 11ct Topaz (13×12.96mm, cushion cut) appears 71% larger than 5ct Diamond (10.5×9.4mm, cushion cut). See below how they compare side-by-side on a ring and finger.

5ct Diamond (cushion cut)
vs
 11ct Topaz (cushion cut)
white
 
blue
10.5×9.4 mm 13×12.96 mm
actual size
Actual size of 5ct Diamond (cushion cut, 10.5×9.4mm, White color)   Actual size of 11ct Topaz (cushion cut, 13×12.96mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 5ct Diamond (cushion cut, 10.5×9.4mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 11ct Topaz (cushion cut, 13×12.96mm) 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
 56% vs 77%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 5ct Diamond Cushion (10.5×9.4mm, White) and 11ct Topaz Cushion (13×12.96mm, Blue) 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, Topaz will face-up slightly smaller than Diamond for a given carat weight, because it has higher specific gravity (3.53 vs. 3.52 - this means it's "slightly 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.


5 Ct Diamond (Cushion) 11 Ct Topaz (Cushion)
10.5×9.4 mm vs 13×12.96 mm
88.83 mm²   151.63 mm²
Face-up size outline for 11ct Topaz (13×12.96mm, cushion cut)
Face-up size outline for 5ct Diamond (10.5×9.4mm, cushion cut)
5ct Diamond Cushion (10.5×9.4mm)
11ct Topaz Cushion (13×12.96mm)
Difference: 71% (62.8 mm²)
11ct Topaz (Cushion, 13×12.96mm) has approx. 71% more face-up area than 5ct Diamond (Cushion, 10.5×9.4mm).


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