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6ct Tourmaline (Cushion, 11.06×11.06mm, Dark Yellowish Green) vs 4ct Sapphire (Cushion, 9×9mm, Dark Blue)


Quick summary: When looked from above (face-up position), 6ct Tourmaline (11.06×11.06mm, cushion cut) appears 51% larger than 4ct Sapphire (9×9mm, cushion cut). See below how they compare side-by-side on a ring and finger.

6ct Tourmaline (cushion cut)
vs
 4ct Sapphire (cushion cut)
dark yellowish green
 
dark blue
11.06×11.06 mm 9×9 mm
actual size
Actual size of 6ct Tourmaline (cushion cut, 11.06×11.06mm, Dark Yellowish Green color)   Actual size of 4ct Sapphire (cushion cut, 9×9mm, Dark Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Dark Yellowish Green 6ct Tourmaline (cushion cut, 11.06×11.06mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Dark Blue 4ct Sapphire (cushion cut, 9×9mm) 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 54%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 6ct Tourmaline Cushion (11.06×11.06mm, Dark Yellowish Green) and 4ct Sapphire Cushion (9×9mm, Dark 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 Ct Tourmaline (Cushion) 4 Ct Sapphire (Cushion)
11.06×11.06 mm vs 9×9 mm
110.09 mm²   72.9 mm²
Face-up size outline for 6ct Tourmaline (11.06×11.06mm, cushion cut)
Face-up size outline for 4ct Sapphire (9×9mm, cushion cut)
6ct Tourmaline Cushion (11.06×11.06mm)
4ct Sapphire Cushion (9×9mm)
Difference: 51% (37.19 mm²)
6ct Tourmaline (Cushion, 11.06×11.06mm) has approx. 51% more face-up area than 4ct Sapphire (Cushion, 9×9mm).


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