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20ct Sapphire (Round, 16.23×16.23mm, Blue) vs 6ct Sapphire (Round, 10.86×10.86mm, Blue)


Quick summary: When looked from above (face-up position), 20ct Sapphire (16.23×16.23mm, round cut) appears 2.2 times larger than 6ct Sapphire (10.86×10.86mm, round cut). See below how they compare side-by-side on a ring and finger.

20ct Sapphire (round cut)
vs
 6ct Sapphire (round cut)
blue
 
blue
16.23×16.23 mm 10.86×10.86 mm
actual size
Actual size of 20ct Sapphire (round cut, 16.23×16.23mm, Blue color)   Actual size of 6ct Sapphire (round cut, 10.86×10.86mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 20ct Sapphire (round cut, 16.23×16.23mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 6ct Sapphire (round cut, 10.86×10.86mm) 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
 97% vs 65%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 20ct Sapphire Round (16.23×16.23mm, Blue) and 6ct Sapphire Round (10.86×10.86mm, 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.


20 Ct Sapphire (Round) 6 Ct Sapphire (Round)
16.23×16.23 mm vs 10.86×10.86 mm
206.88 mm²   92.63 mm²
Face-up size outline for 20ct Sapphire (16.23×16.23mm, round cut)
Face-up size outline for 6ct Sapphire (10.86×10.86mm, round cut)
20ct Sapphire Round (16.23×16.23mm)
6ct Sapphire Round (10.86×10.86mm)
Difference: 123% (114.25 mm²)
20ct Sapphire (Round, 16.23×16.23mm) has approx. 123% more face-up area than 6ct Sapphire (Round, 10.86×10.86mm). In other words, it's 2.23x larger.


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