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Carat vs. Color  Length*  Width*
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2 Ct Amethyst (Cushion)

versus image

1 Ct Quartz (Round)

Purple
 
Yellowish Green
8.08×8.08 mm 6.86×6.86 mm
Actual size of 2ct Amethyst
Actual size of 1ct Quartz

Settings
x Ring: Skin tone:
Ring width: 3.0 mm
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Left finger image
Ring on left finger
Purple 2ct Amethyst on a ring
64 mm
Right finger image
Ring on a right finger
Yellowish Green 1ct Quartz on a ring
Your settings
Ring
Gold
Skin tone
Light
Ring diameter
16.9 mm
Ring width
3.0 mm
Finger length
64 mm
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Ring diameter: 16.9 mm
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Actual sizes of 2ct Amethyst Cushion (8.08×8.08mm, Purple) and 1ct Quartz Round (6.86×6.86mm, Yellowish 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.

Face-up Size

Amethyst and Quartz have the same specific gravity so their face-up size depends on the weight, shape and 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.


2 Ct Amethyst (Cushion) 1 Ct Quartz (Round)
8.08×8.08 mm → 58.76 mm² vs. 36.96 mm² ← 6.86×6.86 mm
Face-up size outline
Face-up size outline
2ct Amethyst Cushion (8.08×8.08mm)
1ct Quartz Round (6.86×6.86mm)
Difference: 59% (21.8 mm²)
2ct Amethyst Cushion (8.08×8.08mm) has approx. 59% more face-up area than 1ct Quartz Round (6.86×6.86mm).


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