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0.3ct Amethyst (Oval, 5.81×3.87mm, Purple) vs 0.4ct Amethyst (Oval, 6.39×4.26mm, Purple)


Quick summary: When looked from above (face-up position), 0.4ct Amethyst (6.39×4.26mm, oval cut) appears 21% larger than 0.3ct Amethyst (5.81×3.87mm, oval cut). See below how they compare side-by-side on a ring and finger.

0.3ct Amethyst (oval cut)
vs
 0.4ct Amethyst (oval cut)
purple
 
purple
5.81×3.87 mm 6.39×4.26 mm
actual size
Actual size of 0.3ct Amethyst (oval cut, 5.81×3.87mm, Purple color)   Actual size of 0.4ct Amethyst (oval cut, 6.39×4.26mm, Purple color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Purple 0.3ct Amethyst (oval cut, 5.81×3.87mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Purple 0.4ct Amethyst (oval cut, 6.39×4.26mm) 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 26%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.3ct Amethyst Oval (5.81×3.87mm, Purple) and 0.4ct Amethyst Oval (6.39×4.26mm, Purple) 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

The face-up size depends on the shape of the gem, its weight and 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.


0.3 Ct Amethyst (Oval) 0.4 Ct Amethyst (Oval)
5.81×3.87 mm vs 6.39×4.26 mm
18.44 mm²   22.32 mm²
Face-up size outline for 0.4ct Amethyst (6.39×4.26mm, oval cut)
Face-up size outline for 0.3ct Amethyst (5.81×3.87mm, oval cut)
0.3ct Amethyst Oval (5.81×3.87mm)
0.4ct Amethyst Oval (6.39×4.26mm)
Difference: 21% (3.88 mm²)
0.4ct Amethyst (Oval, 6.39×4.26mm) has approx. 21% more face-up area than 0.3ct Amethyst (Oval, 5.81×3.87mm).


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