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1.16ct Diamond (Oval, 8.52×5.68mm, White) vs 3.15ct Sapphire (Oval, 11.09×7.39mm, Dark Blue)


Quick summary: When looked from above (face-up position), 3.15ct Sapphire (11.09×7.39mm, oval cut) appears 69% larger than 1.16ct Diamond (8.52×5.68mm, oval cut). See below how they compare side-by-side on a ring and finger.

1.16ct Diamond (oval cut)
vs
 3.15ct Sapphire (oval cut)
white
 
dark blue
8.52×5.68 mm 11.09×7.39 mm
actual size
Actual size of 1.16ct Diamond (oval cut, 8.52×5.68mm, White color)   Actual size of 3.15ct Sapphire (oval cut, 11.09×7.39mm, Dark Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.16ct Diamond (oval cut, 8.52×5.68mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Dark Blue 3.15ct Sapphire (oval cut, 11.09×7.39mm) 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
 34% vs 44%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.16ct Diamond Oval (8.52×5.68mm, White) and 3.15ct Sapphire Oval (11.09×7.39mm, 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 Diamond for a given carat weight, because it has higher specific gravity (4 vs. 3.52 - this means it's "heavier" compared to Diamond 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.


1.16 Ct Diamond (Oval) 3.15 Ct Sapphire (Oval)
8.52×5.68 mm vs 11.09×7.39 mm
39.68 mm²   67.2 mm²
Face-up size outline for 3.15ct Sapphire (11.09×7.39mm, oval cut)
Face-up size outline for 1.16ct Diamond (8.52×5.68mm, oval cut)
1.16ct Diamond Oval (8.52×5.68mm)
3.15ct Sapphire Oval (11.09×7.39mm)
Difference: 69% (27.52 mm²)
3.15ct Sapphire (Oval, 11.09×7.39mm) has approx. 69% more face-up area than 1.16ct Diamond (Oval, 8.52×5.68mm).


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