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1.49ct Sapphire (Oval, 8.64×5.76mm, Blue) vs 0.09ct Diamond (Round, 2.91×2.91mm, White)


Quick summary: When looked from above (face-up position), 1.49ct Sapphire (8.64×5.76mm, oval cut) appears 6.1 times larger than 0.09ct Diamond (2.91×2.91mm, round cut). See below how they compare side-by-side on a ring and finger.

1.49ct Sapphire (oval cut)
vs
 0.09ct Diamond (round cut)
blue
 
white
8.64×5.76 mm 2.91×2.91 mm
actual size
Actual size of 1.49ct Sapphire (oval cut, 8.64×5.76mm, Blue color)   Actual size of 0.09ct Diamond (round cut, 2.91×2.91mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 1.49ct Sapphire (oval cut, 8.64×5.76mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.09ct Diamond (round cut, 2.91×2.91mm) 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
 35% vs 18%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.49ct Sapphire Oval (8.64×5.76mm, Blue) and 0.09ct Diamond Round (2.91×2.91mm, White) 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.


1.49 Ct Sapphire (Oval) 0.09 Ct Diamond (Round)
8.64×5.76 mm vs 2.91×2.91 mm
40.81 mm²   6.65 mm²
Face-up size outline for 1.49ct Sapphire (8.64×5.76mm, oval cut)
Face-up size outline for 0.09ct Diamond (2.91×2.91mm, round cut)
1.49ct Sapphire Oval (8.64×5.76mm)
0.09ct Diamond Round (2.91×2.91mm)
Difference: 514% (34.16 mm²)
1.49ct Sapphire (Oval, 8.64×5.76mm) has approx. 514% more face-up area than 0.09ct Diamond (Round, 2.91×2.91mm). In other words, it's 6.14x larger.


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