20ct Sunstone (Princess, 16.36×16.36mm, Orangey Red) vs 20ct Diopside (Princess, 15.2×15.2mm, Green)
Quick summary: When looked from above (face-up position), 20ct Sunstone (16.36×16.36mm, princess cut) appears 16% larger than 20ct Diopside (15.2×15.2mm, princess cut). See below how they compare side-by-side on a ring and finger.
| 20ct Sunstone (princess cut) |
vs
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20ct Diopside (princess cut) |
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orangey red |
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| 16.36×16.36 mm | 15.2×15.2 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
20ct Sunstone Princess (16.36×16.36mm, Orangey Red)
and
20ct Diopside Princess (15.2×15.2mm, 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.
| 20 Ct Sunstone (Princess) | 20 Ct Diopside (Princess) | |
| 16.36×16.36 mm | vs | 15.2×15.2 mm |
| 267.65 mm² | 231.04 mm² |
| 20ct Sunstone Princess (16.36×16.36mm) | |
| 20ct Diopside Princess (15.2×15.2mm) | |
| Difference: 16% (36.61 mm²) |
20ct Sunstone (Princess, 16.36×16.36mm) has approx. 16% more face-up area than 20ct Diopside (Princess, 15.2×15.2mm).
Popular comparisons:
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