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1.5ct Amethyst (Oval, 9.93×6.62mm, Violet) vs 1ct Tourmaline (Oval, 8.24×5.49mm, Violet)


Quick summary: When looked from above (face-up position), 1.5ct Amethyst (9.93×6.62mm, oval cut) appears 45% larger than 1ct Tourmaline (8.24×5.49mm, oval cut). See below how they compare side-by-side on a ring and finger.

1.5ct Amethyst (oval cut)
vs
 1ct Tourmaline (oval cut)
violet
 
violet
9.93×6.62 mm 8.24×5.49 mm
actual size
Actual size of 1.5ct Amethyst (oval cut, 9.93×6.62mm, Violet color)   Actual size of 1ct Tourmaline (oval cut, 8.24×5.49mm, Violet color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Violet 1.5ct Amethyst (oval cut, 9.93×6.62mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Violet 1ct Tourmaline (oval cut, 8.24×5.49mm) 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
 40% vs 33%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1.5ct Amethyst Oval (9.93×6.62mm, Violet) and 1ct Tourmaline Oval (8.24×5.49mm, Violet) 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, Tourmaline will face-up smaller than Amethyst for a given carat weight, because it has higher specific gravity (3.06 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.


1.5 Ct Amethyst (Oval) 1 Ct Tourmaline (Oval)
9.93×6.62 mm vs 8.24×5.49 mm
53.9 mm²   37.09 mm²
Face-up size outline for 1.5ct Amethyst (9.93×6.62mm, oval cut)
Face-up size outline for 1ct Tourmaline (8.24×5.49mm, oval cut)
1.5ct Amethyst Oval (9.93×6.62mm)
1ct Tourmaline Oval (8.24×5.49mm)
Difference: 45% (16.81 mm²)
1.5ct Amethyst (Oval, 9.93×6.62mm) has approx. 45% more face-up area than 1ct Tourmaline (Oval, 8.24×5.49mm).


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