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3ct Amethyst (Baguette, 11.46×7.64mm, Violet) vs 3ct Tanzanite (Baguette, 10.61×7.07mm, Blue)


Quick summary: When looked from above (face-up position), 3ct Amethyst (11.46×7.64mm, baguette cut) appears 17% larger than 3ct Tanzanite (10.61×7.07mm, baguette cut). See below how they compare side-by-side on a ring and finger.

3ct Amethyst (baguette cut)
vs
 3ct Tanzanite (baguette cut)
violet
 
blue
11.46×7.64 mm 10.61×7.07 mm
actual size
Actual size of 3ct Amethyst (baguette cut, 11.46×7.64mm, Violet color)   Actual size of 3ct Tanzanite (baguette cut, 10.61×7.07mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Violet 3ct Amethyst (baguette cut, 11.46×7.64mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 3ct Tanzanite (baguette cut, 10.61×7.07mm) 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
 46% vs 42%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3ct Amethyst Baguette (11.46×7.64mm, Violet) and 3ct Tanzanite Baguette (10.61×7.07mm, 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, Tanzanite will face-up smaller than Amethyst for a given carat weight, because it has higher specific gravity (3.35 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.


3 Ct Amethyst (Baguette) 3 Ct Tanzanite (Baguette)
11.46×7.64 mm vs 10.61×7.07 mm
87.55 mm²   75.01 mm²
Face-up size outline for 3ct Amethyst (11.46×7.64mm, baguette cut)
Face-up size outline for 3ct Tanzanite (10.61×7.07mm, baguette cut)
3ct Amethyst Baguette (11.46×7.64mm)
3ct Tanzanite Baguette (10.61×7.07mm)
Difference: 17% (12.54 mm²)
3ct Amethyst (Baguette, 11.46×7.64mm) has approx. 17% more face-up area than 3ct Tanzanite (Baguette, 10.61×7.07mm).


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