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1ct Alexandrite (Round, 6×6mm, Bluish Green) vs 1ct Sapphire (Round, 6×6mm, Light Blue)


Quick summary: Compared gemstones have equal face-up area.

1ct Alexandrite (round cut)
vs
1ct Sapphire (round cut)
bluish green
 
light blue
6×6 mm 6×6 mm
actual size
Actual size of 1ct Alexandrite (round cut, 6×6mm, Bluish Green color)   Actual size of 1ct Sapphire (round cut, 6×6mm, Light Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Bluish Green 1ct Alexandrite (round cut, 6×6mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 1ct Sapphire (round cut, 6×6mm) 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
36% vs 36%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1ct Alexandrite Round (6×6mm, Bluish Green) and 1ct Sapphire Round (6×6mm, Light 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

All things being equal, Sapphire will face-up smaller than Alexandrite for a given carat weight, because it has higher specific gravity (4 vs. 3.73 - this means it's "heavier" compared to Alexandrite 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 Ct Alexandrite (Round) 1 Ct Sapphire (Round)
6×6 mm vs 6×6 mm
28.27 mm²   28.27 mm²
Face-up size outline for true size of 6×6mm
1ct Alexandrite Round (6×6mm)
1ct Sapphire Round (6×6mm)
Difference: 0% (0 mm²)
1ct Alexandrite (Round, 6×6mm) and 1ct Sapphire (Round, 6×6mm) have the same face-up area.


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