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1.43ct Sapphire (Cabochon, 7.71×5.14mm, Blue) vs 0.46ct Diamond (Round, 5.02×5.02mm, White)


Quick summary: When looked from above (face-up position), 1.43ct Sapphire (7.71×5.14mm, cabochon cut) appears 64% larger than 0.46ct Diamond (5.02×5.02mm, round cut). See below how they compare side-by-side on a ring and finger.

1.43ct Sapphire (cabochon cut)
vs
 0.46ct Diamond (round cut)
blue
 
white
7.71×5.14 mm 5.02×5.02 mm
actual size
Actual size of 1.43ct Sapphire (cabochon cut, 7.71×5.14mm, Blue color)   Actual size of 0.46ct Diamond (round cut, 5.02×5.02mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 1.43ct Sapphire (cabochon cut, 7.71×5.14mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.46ct Diamond (round cut, 5.02×5.02mm) 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
 31% vs 30%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.43ct Sapphire Cabochon (7.71×5.14mm, Blue) and 0.46ct Diamond Round (5.02×5.02mm, 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.


1.43 Ct Sapphire (Cabochon) 0.46 Ct Diamond (Round)
7.71×5.14 mm vs 5.02×5.02 mm
32.5 mm²   19.79 mm²
Face-up size outline for 1.43ct Sapphire (7.71×5.14mm, cabochon cut)
Face-up size outline for 0.46ct Diamond (5.02×5.02mm, round cut)
1.43ct Sapphire Cabochon (7.71×5.14mm)
0.46ct Diamond Round (5.02×5.02mm)
Difference: 64% (12.71 mm²)
1.43ct Sapphire (Cabochon, 7.71×5.14mm) has approx. 64% more face-up area than 0.46ct Diamond (Round, 5.02×5.02mm).


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