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8.43ct Spinel (Cushion, 11.73×10.29mm, Violet) vs 6.05ct Sapphire (Cushion, 10.64×9.55mm, Blue)


Quick summary: When looked from above (face-up position), 8.43ct Spinel (11.73×10.29mm, cushion cut) appears 19% larger than 6.05ct Sapphire (10.64×9.55mm, cushion cut). See below how they compare side-by-side on a ring and finger.

8.43ct Spinel (cushion cut)
vs
 6.05ct Sapphire (cushion cut)
violet
 
blue
11.73×10.29 mm 10.64×9.55 mm
actual size
Actual size of 8.43ct Spinel (cushion cut, 11.73×10.29mm, Violet color)   Actual size of 6.05ct Sapphire (cushion cut, 10.64×9.55mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Violet 8.43ct Spinel (cushion cut, 11.73×10.29mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 6.05ct Sapphire (cushion cut, 10.64×9.55mm) 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
 61% vs 57%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 8.43ct Spinel Cushion (11.73×10.29mm, Violet) and 6.05ct Sapphire Cushion (10.64×9.55mm, 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, Sapphire will face-up smaller than Spinel for a given carat weight, because it has higher specific gravity (4 vs. 3.6 - this means it's "heavier" compared to Spinel 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.


8.43 Ct Spinel (Cushion) 6.05 Ct Sapphire (Cushion)
11.73×10.29 mm vs 10.64×9.55 mm
108.63 mm²   91.45 mm²
Face-up size outline for 8.43ct Spinel (11.73×10.29mm, cushion cut)
Face-up size outline for 6.05ct Sapphire (10.64×9.55mm, cushion cut)
8.43ct Spinel Cushion (11.73×10.29mm)
6.05ct Sapphire Cushion (10.64×9.55mm)
Difference: 19% (17.18 mm²)
8.43ct Spinel (Cushion, 11.73×10.29mm) has approx. 19% more face-up area than 6.05ct Sapphire (Cushion, 10.64×9.55mm).


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