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10ct Tourmaline (Pear, 20.04×12.07mm, Purple) vs 10ct Sapphire (Pear, 18.33×11.04mm, Blue)


Quick summary: When looked from above (face-up position), 10ct Tourmaline (20.04×12.07mm, pear cut) appears 20% larger than 10ct Sapphire (18.33×11.04mm, pear cut). See below how they compare side-by-side on a ring and finger.

10ct Tourmaline (pear cut)
vs
 10ct Sapphire (pear cut)
purple
 
blue
20.04×12.07 mm 18.33×11.04 mm
actual size
Actual size of 10ct Tourmaline (pear cut, 20.04×12.07mm, Purple color)   Actual size of 10ct Sapphire (pear cut, 18.33×11.04mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Purple 10ct Tourmaline (pear cut, 20.04×12.07mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 10ct Sapphire (pear cut, 18.33×11.04mm) 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
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Actual sizes of 10ct Tourmaline Pear (20.04×12.07mm, Purple) and 10ct Sapphire Pear (18.33×11.04mm, 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.


10 Ct Tourmaline (Pear) 10 Ct Sapphire (Pear)
20.04×12.07 mm vs 18.33×11.04 mm
176.57 mm²   147.73 mm²
Face-up size outline for 10ct Tourmaline (20.04×12.07mm, pear cut)
Face-up size outline for 10ct Sapphire (18.33×11.04mm, pear cut)
10ct Tourmaline Pear (20.04×12.07mm)
10ct Sapphire Pear (18.33×11.04mm)
Difference: 20% (28.84 mm²)
10ct Tourmaline (Pear, 20.04×12.07mm) has approx. 20% more face-up area than 10ct Sapphire (Pear, 18.33×11.04mm).


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