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15ct Tourmaline (Pear, 22.29×13.43mm, Light Orange) vs 4ct Ruby (Pear, 13.18×7.94mm, Red)


Quick summary: When looked from above (face-up position), 15ct Tourmaline (22.29×13.43mm, pear cut) appears 2.9 times larger than 4ct Ruby (13.18×7.94mm, pear cut). See below how they compare side-by-side on a ring and finger.

15ct Tourmaline (pear cut)
vs
 4ct Ruby (pear cut)
light orange
 
red
22.29×13.43 mm 13.18×7.94 mm
actual size
Actual size of 15ct Tourmaline (pear cut, 22.29×13.43mm, Light Orange color)   Actual size of 4ct Ruby (pear cut, 13.18×7.94mm, Red color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Orange 15ct Tourmaline (pear cut, 22.29×13.43mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 4ct Ruby (pear cut, 13.18×7.94mm) 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
 80% vs 47%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 15ct Tourmaline Pear (22.29×13.43mm, Light Orange) and 4ct Ruby Pear (13.18×7.94mm, Red) 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, Ruby 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.


15 Ct Tourmaline (Pear) 4 Ct Ruby (Pear)
22.29×13.43 mm vs 13.18×7.94 mm
218.53 mm²   76.39 mm²
Face-up size outline for 15ct Tourmaline (22.29×13.43mm, pear cut)
Face-up size outline for 4ct Ruby (13.18×7.94mm, pear cut)
15ct Tourmaline Pear (22.29×13.43mm)
4ct Ruby Pear (13.18×7.94mm)
Difference: 186% (142.14 mm²)
15ct Tourmaline (Pear, 22.29×13.43mm) has approx. 186% more face-up area than 4ct Ruby (Pear, 13.18×7.94mm). In other words, it's 2.86x larger.


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