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5ct Spinel (Round, 10.59×10.59mm, Red) vs 5ct Sapphire (Round, 10.22×10.22mm, Blue)


Quick summary: When looked from above (face-up position), 5ct Spinel (10.59×10.59mm, round cut) appears 7% larger than 5ct Sapphire (10.22×10.22mm, round cut). See below how they compare side-by-side on a ring and finger.

5ct Spinel (round cut)
vs
 5ct Sapphire (round cut)
red
 
blue
10.59×10.59 mm 10.22×10.22 mm
actual size
Actual size of 5ct Spinel (round cut, 10.59×10.59mm, Red color)   Actual size of 5ct Sapphire (round cut, 10.22×10.22mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 5ct Spinel (round cut, 10.59×10.59mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 5ct Sapphire (round cut, 10.22×10.22mm) 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
 63% vs 61%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 5ct Spinel Round (10.59×10.59mm, Red) and 5ct Sapphire Round (10.22×10.22mm, 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.


5 Ct Spinel (Round) 5 Ct Sapphire (Round)
10.59×10.59 mm vs 10.22×10.22 mm
88.08 mm²   82.03 mm²
Face-up size outline for 5ct Spinel (10.59×10.59mm, round cut)
Face-up size outline for 5ct Sapphire (10.22×10.22mm, round cut)
5ct Spinel Round (10.59×10.59mm)
5ct Sapphire Round (10.22×10.22mm)
Difference: 7% (6.05 mm²)
5ct Spinel (Round, 10.59×10.59mm) has approx. 7% more face-up area than 5ct Sapphire (Round, 10.22×10.22mm).


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