24ct Sunstone (Cushion, 18.32×18.32mm, Orangey Red) vs 24ct Diopside (Cushion, 17.02×17.02mm, Green)
Quick summary: When looked from above (face-up position), 24ct Sunstone (18.32×18.32mm, cushion cut) appears 16% larger than 24ct Diopside (17.02×17.02mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 24ct Sunstone (cushion cut) |
vs
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24ct Diopside (cushion cut) |
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orangey red |
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| 18.32×18.32 mm | 17.02×17.02 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
24ct Sunstone Cushion (18.32×18.32mm, Orangey Red)
and
24ct Diopside Cushion (17.02×17.02mm, 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.
| 24 Ct Sunstone (Cushion) | 24 Ct Diopside (Cushion) | |
| 18.32×18.32 mm | vs | 17.02×17.02 mm |
| 302.06 mm² | 260.71 mm² |
| 24ct Sunstone Cushion (18.32×18.32mm) | |
| 24ct Diopside Cushion (17.02×17.02mm) | |
| Difference: 16% (41.35 mm²) |
24ct Sunstone (Cushion, 18.32×18.32mm) has approx. 16% more face-up area than 24ct Diopside (Cushion, 17.02×17.02mm).
Popular comparisons:
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- 1.16ct Diamond (Round, White, 6.82 x 6.85) vs. 1.2ct Diamond (Round, White, 6.82 x 6.86)
- 6ct Morganite (Cushion, Light Red, 12 x 10) vs. 3.5ct Sapphire (Cushion, Blue, 8.49 x 8.49)
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- 1ct Topaz (Round, Blue, 6 x 6) vs. 0.5ct Topaz (Round, Blue, 5 x 5)
- 1ct Sapphire (Baguette, Blue, 6.93 x 4.62) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)