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0.25ct Diamond (Cushion, 3.67×3.67mm, White) vs 10.59ct Spinel (Cushion, 12.72×12.72mm, Red)


Quick summary: When looked from above (face-up position), 10.59ct Spinel (12.72×12.72mm, cushion cut) appears 12 times larger than 0.25ct Diamond (3.67×3.67mm, cushion cut). See below how they compare side-by-side on a ring and finger.

0.25ct Diamond (cushion cut)
vs
 10.59ct Spinel (cushion cut)
white
 
red
3.67×3.67 mm 12.72×12.72 mm
actual size
Actual size of 0.25ct Diamond (cushion cut, 3.67×3.67mm, White color)   Actual size of 10.59ct Spinel (cushion cut, 12.72×12.72mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 0.25ct Diamond (cushion cut, 3.67×3.67mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 10.59ct Spinel (cushion cut, 12.72×12.72mm) 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
 22% vs 76%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.25ct Diamond Cushion (3.67×3.67mm, White) and 10.59ct Spinel Cushion (12.72×12.72mm, 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, Spinel will face-up slightly smaller than Diamond for a given carat weight, because it has higher specific gravity (3.6 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.


0.25 Ct Diamond (Cushion) 10.59 Ct Spinel (Cushion)
3.67×3.67 mm vs 12.72×12.72 mm
12.12 mm²   145.62 mm²
Face-up size outline for 10.59ct Spinel (12.72×12.72mm, cushion cut)
Face-up size outline for 0.25ct Diamond (3.67×3.67mm, cushion cut)
0.25ct Diamond Cushion (3.67×3.67mm)
10.59ct Spinel Cushion (12.72×12.72mm)
Difference: 1101% (133.5 mm²)
10.59ct Spinel (Cushion, 12.72×12.72mm) has approx. 1101% more face-up area than 0.25ct Diamond (Cushion, 3.67×3.67mm). In other words, it's 12.01x larger.


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