8.5ct Diaspore (Radiant, 11.87×11.87mm, Light Yellowish Green) vs 8.5ct Zircon (Radiant, 10.66×10.66mm, Orange)
Quick summary: When looked from above (face-up position), 8.5ct Diaspore (11.87×11.87mm, radiant cut) appears 24% larger than 8.5ct Zircon (10.66×10.66mm, radiant cut). See below how they compare side-by-side on a ring and finger.
| 8.5ct Diaspore (radiant cut) |
vs
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8.5ct Zircon (radiant cut) |
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light yellowish green |
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| 11.87×11.87 mm | 10.66×10.66 mm | |
| actual size | ||
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Actual size is set for screen
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Ring:
Skin tone:
Ring width: 3.0 mm
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64 mm |
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Actual sizes of
8.5ct Diaspore Radiant (11.87×11.87mm, Light Yellowish Green)
and
8.5ct Zircon Radiant (10.66×10.66mm, 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 certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Face-up Size
All things being equal, Zircon will face-up smaller than Diaspore for a given
carat weight, because it has higher specific gravity
(4.7 vs. 3.4 - this means it's "heavier" compared to Diaspore 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.
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.
| 8.5 Ct Diaspore (Radiant) | 8.5 Ct Zircon (Radiant) | |
| 11.87×11.87 mm | vs | 10.66×10.66 mm |
| 133.85 mm² | 107.95 mm² |
| 8.5ct Diaspore Radiant (11.87×11.87mm) | |
| 8.5ct Zircon Radiant (10.66×10.66mm) | |
| Difference: 24% (25.9 mm²) |
8.5ct Diaspore (Radiant, 11.87×11.87mm) has approx. 24% more face-up area than 8.5ct Zircon (Radiant, 10.66×10.66mm).
Popular comparisons:
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- 1ct Topaz (Round, Blue, 6 x 6) vs. 0.5ct Topaz (Round, Blue, 5 x 5)