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7ct Tourmaline (Pear, 17.8×10.72mm, Purple) vs 7ct Sapphire (Pear, 16.27×9.8mm, Blue)


Quick summary: When looked from above (face-up position), 7ct Tourmaline (17.8×10.72mm, pear cut) appears 20% larger than 7ct Sapphire (16.27×9.8mm, pear cut). See below how they compare side-by-side on a ring and finger.

7ct Tourmaline (pear cut)
vs
 7ct Sapphire (pear cut)
purple
 
blue
17.8×10.72 mm 16.27×9.8 mm
actual size
Actual size of 7ct Tourmaline (pear cut, 17.8×10.72mm, Purple color)   Actual size of 7ct Sapphire (pear cut, 16.27×9.8mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Purple 7ct Tourmaline (pear cut, 17.8×10.72mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 7ct Sapphire (pear cut, 16.27×9.8mm) 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
 64% vs 58%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 7ct Tourmaline Pear (17.8×10.72mm, Purple) and 7ct Sapphire Pear (16.27×9.8mm, 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.


7 Ct Tourmaline (Pear) 7 Ct Sapphire (Pear)
17.8×10.72 mm vs 16.27×9.8 mm
139.3 mm²   116.4 mm²
Face-up size outline for 7ct Tourmaline (17.8×10.72mm, pear cut)
Face-up size outline for 7ct Sapphire (16.27×9.8mm, pear cut)
7ct Tourmaline Pear (17.8×10.72mm)
7ct Sapphire Pear (16.27×9.8mm)
Difference: 20% (22.9 mm²)
7ct Tourmaline (Pear, 17.8×10.72mm) has approx. 20% more face-up area than 7ct Sapphire (Pear, 16.27×9.8mm).


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