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0.25ct Sapphire (Cabochon, 4.31×2.87mm, Blue) vs 1ct Sapphire (Cabochon, 6.84×4.56mm, Blue)


Quick summary: When looked from above (face-up position), 1ct Sapphire (6.84×4.56mm, cabochon cut) appears 2.5 times larger than 0.25ct Sapphire (4.31×2.87mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

0.25ct Sapphire (cabochon cut)
vs
 1ct Sapphire (cabochon cut)
blue
 
blue
4.31×2.87 mm 6.84×4.56 mm
actual size
Actual size of 0.25ct Sapphire (cabochon cut, 4.31×2.87mm, Blue color)   Actual size of 1ct Sapphire (cabochon cut, 6.84×4.56mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 0.25ct Sapphire (cabochon cut, 4.31×2.87mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 1ct Sapphire (cabochon cut, 6.84×4.56mm) 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
 17% vs 27%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 0.25ct Sapphire Cabochon (4.31×2.87mm, Blue) and 1ct Sapphire Cabochon (6.84×4.56mm, 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

The face-up size depends on the shape of the gem, its weight and 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.


0.25 Ct Sapphire (Cabochon) 1 Ct Sapphire (Cabochon)
4.31×2.87 mm vs 6.84×4.56 mm
10.14 mm²   25.58 mm²
Face-up size outline for 1ct Sapphire (6.84×4.56mm, cabochon cut)
Face-up size outline for 0.25ct Sapphire (4.31×2.87mm, cabochon cut)
0.25ct Sapphire Cabochon (4.31×2.87mm)
1ct Sapphire Cabochon (6.84×4.56mm)
Difference: 152% (15.44 mm²)
1ct Sapphire (Cabochon, 6.84×4.56mm) has approx. 152% more face-up area than 0.25ct Sapphire (Cabochon, 4.31×2.87mm). In other words, it's 2.52x larger.


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