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0.53ct Diamond (Round, 5.26×5.26mm, White) vs 1.67ct Sapphire (Round, 7.09×7.09mm, Dark Bluish Green)


Quick summary: When looked from above (face-up position), 1.67ct Sapphire (7.09×7.09mm, round cut) appears 82% larger than 0.53ct Diamond (5.26×5.26mm, round cut). See below how they compare side-by-side on a ring and finger.

0.53ct Diamond (round cut)
vs
 1.67ct Sapphire (round cut)
white
 
dark bluish green
5.26×5.26 mm 7.09×7.09 mm
actual size
Actual size of 0.53ct Diamond (round cut, 5.26×5.26mm, White color)   Actual size of 1.67ct Sapphire (round cut, 7.09×7.09mm, Dark Bluish Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
White 0.53ct Diamond (round cut, 5.26×5.26mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Dark Bluish Green 1.67ct Sapphire (round cut, 7.09×7.09mm) 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
 32% vs 42%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.53ct Diamond Round (5.26×5.26mm, White) and 1.67ct Sapphire Round (7.09×7.09mm, Dark Bluish 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.


0.53 Ct Diamond (Round) 1.67 Ct Sapphire (Round)
5.26×5.26 mm vs 7.09×7.09 mm
21.73 mm²   39.48 mm²
Face-up size outline for 1.67ct Sapphire (7.09×7.09mm, round cut)
Face-up size outline for 0.53ct Diamond (5.26×5.26mm, round cut)
0.53ct Diamond Round (5.26×5.26mm)
1.67ct Sapphire Round (7.09×7.09mm)
Difference: 82% (17.75 mm²)
1.67ct Sapphire (Round, 7.09×7.09mm) has approx. 82% more face-up area than 0.53ct Diamond (Round, 5.26×5.26mm).


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