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10ct Amethyst (Oval, 18.69×12.46mm, Violet) vs 10ct Hiddenite (Marquise, 22.96×11.48mm, Light Green )


Quick summary: When looked from above (face-up position), 10ct Amethyst (18.69×12.46mm, oval cut) appears 2% larger than 10ct Hiddenite (22.96×11.48mm, marquise cut). See below how they compare side-by-side on a ring and finger.

10ct Amethyst (oval cut)
vs
10ct Hiddenite (marquise cut)
violet
 
light green
18.69×12.46 mm 22.96×11.48 mm
actual size
Actual size of 10ct Amethyst (oval cut, 18.69×12.46mm, Violet color)   Actual size of 10ct Hiddenite (marquise cut, 22.96×11.48mm, Light Green  color)
 
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Left finger image
Ring on left finger
Violet 10ct Amethyst (oval cut, 18.69×12.46mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Green  10ct Hiddenite (marquise cut, 22.96×11.48mm) on a right ring and finger
Your settings
Ring
Gold
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Light
Ring diameter
16.9 mm
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Finger length
64 mm
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Ring diameter: 16.9 mm
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Actual sizes of 10ct Amethyst Oval (18.69×12.46mm, Violet) and 10ct Hiddenite Marquise (22.96×11.48mm, Light 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, Hiddenite will face-up smaller than Amethyst for a given carat weight, because it has higher specific gravity (3.18 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.


10 Ct Amethyst (Oval) 10 Ct Hiddenite (Marquise)
18.69×12.46 mm vs 22.96×11.48 mm
190.96 mm²   187.14 mm²
Face-up size outline for 10ct Amethyst (18.69×12.46mm, oval cut)
Face-up size outline for 10ct Hiddenite (22.96×11.48mm, marquise cut)
10ct Amethyst Oval (18.69×12.46mm)
10ct Hiddenite Marquise (22.96×11.48mm)
Difference: 2% (3.82 mm²)
10ct Amethyst Oval (18.69×12.46mm) has approx. 2% more face-up area than 10ct Hiddenite Marquise (22.96×11.48mm).


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