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carat vs. color  length*  width*
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1 Ct Quartz (Round)

vs

1 Ct Amethyst (Round)

orangey red
 
violet
6.86×6.86 mm 6.86×6.86 mm
actual size
Actual size of 1ct Quartz   Actual size of 1ct Amethyst
 
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Ring: Skin tone:
Ring width: 3.0 mm
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Left finger image
Ring on left finger
Orangey Red 1ct Quartz on a ring
64 mm
Right finger image
Ring on a right finger
Violet 1ct Amethyst 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 1ct Quartz Round (6.86×6.86mm, Orangey Red) and 1ct Amethyst Round (6.86×6.86mm, 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 Quartz or Amethyst check what Amazon has to offer. You'll usually find quite a selection from many different vendors. Worth a check. For other high quality gemstones (Rubies, Saphhires, Emeralds) and especially Diamonds, I highly recommend JamesAllen.

Face-up Size

Quartz and Amethyst 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.


1 Ct Quartz (Round) 1 Ct Amethyst (Round)
6.86×6.86 mm vs 6.86×6.86 mm
36.96 mm²   36.96 mm²
Face-up size outline
1ct Quartz Round (6.86×6.86mm)
1ct Amethyst Round (6.86×6.86mm)
Difference: 0% (0 mm²)
1ct Quartz Round (6.86×6.86mm) and 1ct Amethyst Round (6.86×6.86mm) have the same face-up area.


Popular comparisons:

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Actual size is currently adjusted to screen.

If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.