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1.23ct Sapphire (Round, 6.1×6.1mm, Blue) vs 1.72ct Sapphire (Round, 7×7mm, Blue)


Quick summary: When looked from above (face-up position), 1.72ct Sapphire (7×7mm, round cut) appears 32% larger than 1.23ct Sapphire (6.1×6.1mm, round cut). See below how they compare side-by-side on a ring and finger.

1.23ct Sapphire (round cut)
vs
 1.72ct Sapphire (round cut)
blue
 
blue
6.1×6.1 mm 7×7 mm
actual size
Actual size of 1.23ct Sapphire (round cut, 6.1×6.1mm, Blue color)   Actual size of 1.72ct Sapphire (round cut, 7×7mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 1.23ct Sapphire (round cut, 6.1×6.1mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 1.72ct Sapphire (round cut, 7×7mm) 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
 37% vs 42%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.23ct Sapphire Round (6.1×6.1mm, Blue) and 1.72ct Sapphire Round (7×7mm, 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.


1.23 Ct Sapphire (Round) 1.72 Ct Sapphire (Round)
6.1×6.1 mm vs 7×7 mm
29.22 mm²   38.48 mm²
Face-up size outline for 1.72ct Sapphire (7×7mm, round cut)
Face-up size outline for 1.23ct Sapphire (6.1×6.1mm, round cut)
1.23ct Sapphire Round (6.1×6.1mm)
1.72ct Sapphire Round (7×7mm)
Difference: 32% (9.26 mm²)
1.72ct Sapphire (Round, 7×7mm) has approx. 32% more face-up area than 1.23ct Sapphire (Round, 6.1×6.1mm).


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