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6.5ct Tourmaline (Trillion, 14.92×14.92mm, Purple) vs 6.5ct Sapphire (Trillion, 13.64×13.64mm, Blue)


Quick summary: When looked from above (face-up position), 6.5ct Tourmaline (14.92×14.92mm, trillion cut) appears 20% larger than 6.5ct Sapphire (13.64×13.64mm, trillion cut). See below how they compare side-by-side on a ring and finger.

6.5ct Tourmaline (trillion cut)
vs
 6.5ct Sapphire (trillion cut)
purple
 
blue
14.92×14.92 mm 13.64×13.64 mm
actual size
Actual size of 6.5ct Tourmaline (trillion cut, 14.92×14.92mm, Purple color)   Actual size of 6.5ct Sapphire (trillion cut, 13.64×13.64mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Purple 6.5ct Tourmaline (trillion cut, 14.92×14.92mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 6.5ct Sapphire (trillion cut, 13.64×13.64mm) 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
 89% vs 81%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 6.5ct Tourmaline Trillion (14.92×14.92mm, Purple) and 6.5ct Sapphire Trillion (13.64×13.64mm, 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.


6.5 Ct Tourmaline (Trillion) 6.5 Ct Sapphire (Trillion)
14.92×14.92 mm vs 13.64×13.64 mm
138.02 mm²   115.35 mm²
Face-up size outline for 6.5ct Tourmaline (14.92×14.92mm, trillion cut)
Face-up size outline for 6.5ct Sapphire (13.64×13.64mm, trillion cut)
6.5ct Tourmaline Trillion (14.92×14.92mm)
6.5ct Sapphire Trillion (13.64×13.64mm)
Difference: 20% (22.67 mm²)
6.5ct Tourmaline (Trillion, 14.92×14.92mm) has approx. 20% more face-up area than 6.5ct Sapphire (Trillion, 13.64×13.64mm).


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