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10ct Tourmaline (Emerald, 15.04×11.14mm, Purple) vs 10ct Sapphire (Emerald, 13.76×10.19mm, Blue)


Quick summary: When looked from above (face-up position), 10ct Tourmaline (15.04×11.14mm, emerald cut) appears 19% larger than 10ct Sapphire (13.76×10.19mm, emerald cut). See below how they compare side-by-side on a ring and finger.

10ct Tourmaline (emerald cut)
vs
 10ct Sapphire (emerald cut)
purple
 
blue
15.04×11.14 mm 13.76×10.19 mm
actual size
Actual size of 10ct Tourmaline (emerald cut, 15.04×11.14mm, Purple color)   Actual size of 10ct Sapphire (emerald cut, 13.76×10.19mm, 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 (emerald cut, 15.04×11.14mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 10ct Sapphire (emerald cut, 13.76×10.19mm) 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
 66% vs 61%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 10ct Tourmaline Emerald (15.04×11.14mm, Purple) and 10ct Sapphire Emerald (13.76×10.19mm, 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 (Emerald) 10 Ct Sapphire (Emerald)
15.04×11.14 mm vs 13.76×10.19 mm
155.82 mm²   130.4 mm²
Face-up size outline for 10ct Tourmaline (15.04×11.14mm, emerald cut)
Face-up size outline for 10ct Sapphire (13.76×10.19mm, emerald cut)
10ct Tourmaline Emerald (15.04×11.14mm)
10ct Sapphire Emerald (13.76×10.19mm)
Difference: 19% (25.42 mm²)
10ct Tourmaline (Emerald, 15.04×11.14mm) has approx. 19% more face-up area than 10ct Sapphire (Emerald, 13.76×10.19mm).


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