26ct Sunstone (Radiant, 18.72×18.72mm, Orangey Red) vs 26ct Diopside (Radiant, 17.4×17.4mm, Green)
Quick summary: When looked from above (face-up position), 26ct Sunstone (18.72×18.72mm, radiant cut) appears 16% larger than 26ct Diopside (17.4×17.4mm, radiant cut). See below how they compare side-by-side on a ring and finger.
| 26ct Sunstone (radiant cut) |
vs
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26ct Diopside (radiant cut) |
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orangey red |
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| 18.72×18.72 mm | 17.4×17.4 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
26ct Sunstone Radiant (18.72×18.72mm, Orangey Red)
and
26ct Diopside Radiant (17.4×17.4mm, 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.
| 26 Ct Sunstone (Radiant) | 26 Ct Diopside (Radiant) | |
| 18.72×18.72 mm | vs | 17.4×17.4 mm |
| 332.92 mm² | 287.62 mm² |
| 26ct Sunstone Radiant (18.72×18.72mm) | |
| 26ct Diopside Radiant (17.4×17.4mm) | |
| Difference: 16% (45.3 mm²) |
26ct Sunstone (Radiant, 18.72×18.72mm) has approx. 16% more face-up area than 26ct Diopside (Radiant, 17.4×17.4mm).
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)