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carat vs. color  length*  width*
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0.5 Ct Tanzanite (Round)

vs

0.5 Ct Zircon (Round)

blue
 
light orange
5.06×5.06 mm 4.51×4.51 mm
actual size
Actual size of 0.5ct Tanzanite   Actual size of 0.5ct Zircon
 
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Ring: Skin tone:
Ring width: 3.0 mm
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Left finger image
Ring on left finger
Blue 0.5ct Tanzanite on a ring
64 mm
Right finger image
Ring on a right finger
Light Orange 0.5ct Zircon 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 0.5ct Tanzanite Round (5.06×5.06mm, Blue) and 0.5ct Zircon Round (4.51×4.51mm, Light Orange) 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 Tanzanite or Zircon 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

All things being equal, Zircon will face-up smaller than Tanzanite for a given carat weight, because it has higher specific gravity (4.65 vs. 3.3 - this means it's "heavier" compared to Tanzanite 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.


0.5 Ct Tanzanite (Round) 0.5 Ct Zircon (Round)
5.06×5.06 mm vs 4.51×4.51 mm
20.11 mm²   15.98 mm²
Face-up size outline
Face-up size outline
0.5ct Tanzanite Round (5.06×5.06mm)
0.5ct Zircon Round (4.51×4.51mm)
Difference: 26% (4.13 mm²)
0.5ct Tanzanite Round (5.06×5.06mm) has approx. 26% more face-up area than 0.5ct Zircon Round (4.51×4.51mm).


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