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16ct Amethyst (Baguette, 20.03×13.35mm, Violet) vs 16ct Alexandrite (Baguette, 17.88×11.92mm, Bluish Green)


Quick summary: When looked from above (face-up position), 16ct Amethyst (20.03×13.35mm, baguette cut) appears 25% larger than 16ct Alexandrite (17.88×11.92mm, baguette cut). See below how they compare side-by-side on a ring and finger.

16ct Amethyst (baguette cut)
vs
 16ct Alexandrite (baguette cut)
violet
 
bluish green
20.03×13.35 mm 17.88×11.92 mm
actual size
Actual size of 16ct Amethyst (baguette cut, 20.03×13.35mm, Violet color)   Actual size of 16ct Alexandrite (baguette cut, 17.88×11.92mm, Bluish Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Violet 16ct Amethyst (baguette cut, 20.03×13.35mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Bluish Green 16ct Alexandrite (baguette cut, 17.88×11.92mm) 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
 79% vs 71%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 16ct Amethyst Baguette (20.03×13.35mm, Violet) and 16ct Alexandrite Baguette (17.88×11.92mm, 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 Amethyst for a given carat weight, because it has higher specific gravity (3.73 vs. 2.65 - this means it's "heavier" compared to Amethyst 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.


16 Ct Amethyst (Baguette) 16 Ct Alexandrite (Baguette)
20.03×13.35 mm vs 17.88×11.92 mm
267.4 mm²   213.13 mm²
Face-up size outline for 16ct Amethyst (20.03×13.35mm, baguette cut)
Face-up size outline for 16ct Alexandrite (17.88×11.92mm, baguette cut)
16ct Amethyst Baguette (20.03×13.35mm)
16ct Alexandrite Baguette (17.88×11.92mm)
Difference: 25% (54.27 mm²)
16ct Amethyst (Baguette, 20.03×13.35mm) has approx. 25% more face-up area than 16ct Alexandrite (Baguette, 17.88×11.92mm).


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