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0.6ct Diamond (Round, 5.48×5.48mm, Black) vs 0.35ct Sapphire (Oval, 5.33×3.55mm, Blue)


Quick summary: When looked from above (face-up position), 0.6ct Colored Diamond (5.48×5.48mm, round cut) appears 52% larger than 0.35ct Sapphire (5.33×3.55mm, oval cut). See below how they compare side-by-side on a ring and finger.

0.6ct Diamond (round cut)
vs
 0.35ct Sapphire (oval cut)
black
 
blue
5.48×5.48 mm 5.33×3.55 mm
actual size
Actual size of 0.6ct Diamond (round cut, 5.48×5.48mm, Black color)   Actual size of 0.35ct Sapphire (oval cut, 5.33×3.55mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Black 0.6ct Diamond (round cut, 5.48×5.48mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 0.35ct Sapphire (oval cut, 5.33×3.55mm) 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
 33% vs 22%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.6ct Diamond Round (5.48×5.48mm, Black) and 0.35ct Sapphire Oval (5.33×3.55mm, 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.


0.6 Ct Colored Diamond (Round) 0.35 Ct Sapphire (Oval)
5.48×5.48 mm vs 5.33×3.55 mm
23.59 mm²   15.52 mm²
Face-up size outline for 0.6ct Diamond (5.48×5.48mm, round cut)
Face-up size outline for 0.35ct Sapphire (5.33×3.55mm, oval cut)
0.6ct Colored Diamond Round (5.48×5.48mm)
0.35ct Sapphire Oval (5.33×3.55mm)
Difference: 52% (8.07 mm²)
0.6ct Colored Diamond (Round, 5.48×5.48mm) has approx. 52% more face-up area than 0.35ct Sapphire (Oval, 5.33×3.55mm).


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