18ct Sunstone (Princess, 15.79×15.79mm, Orangey Red) vs 18ct Diopside (Princess, 14.68×14.68mm, Green)
Quick summary: When looked from above (face-up position), 18ct Sunstone (15.79×15.79mm, princess cut) appears 16% larger than 18ct Diopside (14.68×14.68mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 18ct Sunstone (princess cut) |
vs
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18ct Diopside (princess cut) |
|
orangey red |
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| 15.79×15.79 mm | 14.68×14.68 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
18ct Sunstone Princess (15.79×15.79mm, Orangey Red)
and
18ct Diopside Princess (14.68×14.68mm, 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.
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Face-up Size
All things being equal, Diopside will face-up smaller than Sunstone for a given
carat weight, because it has higher specific gravity
(3.3 vs. 2.65 - this means it's "heavier" compared to Sunstone 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.
| 18 Ct Sunstone (Princess) | 18 Ct Diopside (Princess) | |
| 15.79×15.79 mm | vs | 14.68×14.68 mm |
| 249.32 mm² | 215.5 mm² |
| 18ct Sunstone Princess (15.79×15.79mm) | |
| 18ct Diopside Princess (14.68×14.68mm) | |
| Difference: 16% (33.82 mm²) |
18ct Sunstone (Princess, 15.79×15.79mm) has approx. 16% more face-up area than 18ct Diopside (Princess, 14.68×14.68mm).
Popular comparisons:
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