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1.56ct Diamond (Oval, 9.42×6.28mm, White) vs 3.03ct Sapphire (Oval, 10.95×7.3mm, Light Yellowish Green)


Quick summary: When looked from above (face-up position), 3.03ct Sapphire (10.95×7.3mm, oval cut) appears 35% larger than 1.56ct Diamond (9.42×6.28mm, oval cut). See below how they compare side-by-side on a ring and finger.

1.56ct Diamond (oval cut)
vs
 3.03ct Sapphire (oval cut)
white
 
light yellowish green
9.42×6.28 mm 10.95×7.3 mm
actual size
Actual size of 1.56ct Diamond (oval cut, 9.42×6.28mm, White color)   Actual size of 3.03ct Sapphire (oval cut, 10.95×7.3mm, Light Yellowish Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 1.56ct Diamond (oval cut, 9.42×6.28mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Yellowish Green 3.03ct Sapphire (oval cut, 10.95×7.3mm) 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
 38% vs 44%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.56ct Diamond Oval (9.42×6.28mm, White) and 3.03ct Sapphire Oval (10.95×7.3mm, Light Yellowish Green) 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.


1.56 Ct Diamond (Oval) 3.03 Ct Sapphire (Oval)
9.42×6.28 mm vs 10.95×7.3 mm
48.51 mm²   65.55 mm²
Face-up size outline for 3.03ct Sapphire (10.95×7.3mm, oval cut)
Face-up size outline for 1.56ct Diamond (9.42×6.28mm, oval cut)
1.56ct Diamond Oval (9.42×6.28mm)
3.03ct Sapphire Oval (10.95×7.3mm)
Difference: 35% (17.04 mm²)
3.03ct Sapphire (Oval, 10.95×7.3mm) has approx. 35% more face-up area than 1.56ct Diamond (Oval, 9.42×6.28mm).


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