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0.1ct Amethyst (Trillion, 3.74×3.74mm, Dark Violet) vs 10ct Aquamarine (Oval, 18.57×12.38mm, Light Blue)


Quick summary: When looked from above (face-up position), 10ct Aquamarine (18.57×12.38mm, oval cut) appears 21.7 times larger than 0.1ct Amethyst (3.74×3.74mm, trillion cut). See below how they compare side-by-side on a ring and finger.

0.1ct Amethyst (trillion cut)
vs
 10ct Aquamarine (oval cut)
dark violet
 
light blue
3.74×3.74 mm 18.57×12.38 mm
actual size
Actual size of 0.1ct Amethyst (trillion cut, 3.74×3.74mm, Dark Violet color)   Actual size of 10ct Aquamarine (oval cut, 18.57×12.38mm, Light Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Dark Violet 0.1ct Amethyst (trillion cut, 3.74×3.74mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 10ct Aquamarine (oval cut, 18.57×12.38mm) 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
 23% vs 74%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.1ct Amethyst Trillion (3.74×3.74mm, Dark Violet) and 10ct Aquamarine Oval (18.57×12.38mm, 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, Aquamarine will face-up slightly smaller than Amethyst for a given carat weight, because it has higher specific gravity (2.72 vs. 2.65 - this means it's "slightly 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.


0.1 Ct Amethyst (Trillion) 10 Ct Aquamarine (Oval)
3.74×3.74 mm vs 18.57×12.38 mm
8.67 mm²   188.52 mm²
Face-up size outline for 10ct Aquamarine (18.57×12.38mm, oval cut)
Face-up size outline for 0.1ct Amethyst (3.74×3.74mm, trillion cut)
0.1ct Amethyst Trillion (3.74×3.74mm)
10ct Aquamarine Oval (18.57×12.38mm)
Difference: 2074% (179.85 mm²)
10ct Aquamarine (Oval, 18.57×12.38mm) has approx. 2074% more face-up area than 0.1ct Amethyst (Trillion, 3.74×3.74mm). In other words, it's 21.74x larger.


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