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4ct Spinel (Baguette, 11.4×7.6mm, Red) vs 4ct Alexandrite (Baguette, 11.27×7.51mm, Bluish Green)


Quick summary: When looked from above (face-up position), 4ct Spinel (11.4×7.6mm, baguette cut) appears 2% larger than 4ct Alexandrite (11.27×7.51mm, baguette cut). See below how they compare side-by-side on a ring and finger.

4ct Spinel (baguette cut)
vs
 4ct Alexandrite (baguette cut)
red
 
bluish green
11.4×7.6 mm 11.27×7.51 mm
actual size
Actual size of 4ct Spinel (baguette cut, 11.4×7.6mm, Red color)   Actual size of 4ct Alexandrite (baguette cut, 11.27×7.51mm, Bluish Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 4ct Spinel (baguette cut, 11.4×7.6mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 4ct Alexandrite (baguette cut, 11.27×7.51mm) 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
 45% vs 45%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 4ct Spinel Baguette (11.4×7.6mm, Red) and 4ct Alexandrite Baguette (11.27×7.51mm, Bluish Green) 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, Alexandrite will face-up smaller than Spinel for a given carat weight, because it has higher specific gravity (3.73 vs. 3.6 - this means it's "heavier" compared to Spinel 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.


4 Ct Spinel (Baguette) 4 Ct Alexandrite (Baguette)
11.4×7.6 mm vs 11.27×7.51 mm
86.64 mm²   84.64 mm²
Face-up size outline for 4ct Spinel (11.4×7.6mm, baguette cut)
Face-up size outline for 4ct Alexandrite (11.27×7.51mm, baguette cut)
4ct Spinel Baguette (11.4×7.6mm)
4ct Alexandrite Baguette (11.27×7.51mm)
Difference: 2% (2 mm²)
4ct Spinel (Baguette, 11.4×7.6mm) has approx. 2% more face-up area than 4ct Alexandrite (Baguette, 11.27×7.51mm).


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