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8ct Tourmaline (Cushion, 12.1×12.1mm, Purple) vs 8ct Sapphire (Cushion, 11.07×11.07mm, Blue)


Quick summary: When looked from above (face-up position), 8ct Tourmaline (12.1×12.1mm, cushion cut) appears 19% larger than 8ct Sapphire (11.07×11.07mm, cushion cut). See below how they compare side-by-side on a ring and finger.

8ct Tourmaline (cushion cut)
vs
 8ct Sapphire (cushion cut)
purple
 
blue
12.1×12.1 mm 11.07×11.07 mm
actual size
Actual size of 8ct Tourmaline (cushion cut, 12.1×12.1mm, Purple color)   Actual size of 8ct Sapphire (cushion cut, 11.07×11.07mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Purple 8ct Tourmaline (cushion cut, 12.1×12.1mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 8ct Sapphire (cushion cut, 11.07×11.07mm) 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
 72% vs 66%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 8ct Tourmaline Cushion (12.1×12.1mm, Purple) and 8ct Sapphire Cushion (11.07×11.07mm, 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 Tourmaline for a given carat weight, because it has higher specific gravity (4 vs. 3.06 - this means it's "heavier" compared to Tourmaline 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 Ct Tourmaline (Cushion) 8 Ct Sapphire (Cushion)
12.1×12.1 mm vs 11.07×11.07 mm
131.77 mm²   110.29 mm²
Face-up size outline for 8ct Tourmaline (12.1×12.1mm, cushion cut)
Face-up size outline for 8ct Sapphire (11.07×11.07mm, cushion cut)
8ct Tourmaline Cushion (12.1×12.1mm)
8ct Sapphire Cushion (11.07×11.07mm)
Difference: 19% (21.48 mm²)
8ct Tourmaline (Cushion, 12.1×12.1mm) has approx. 19% more face-up area than 8ct Sapphire (Cushion, 11.07×11.07mm).


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