19ct Sunstone (Round, 18.3×18.3mm, Orangey Red) vs 19ct Diopside (Round, 17.01×17.01mm, Green)
Quick summary: When looked from above (face-up position), 19ct Sunstone (18.3×18.3mm, round cut) appears 16% larger than 19ct Diopside (17.01×17.01mm, round cut). See below how they compare side-by-side on a ring and finger.
| 19ct Sunstone (round cut) |
vs
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19ct Diopside (round cut) |
|
orangey red |
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| 18.3×18.3 mm | 17.01×17.01 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
19ct Sunstone Round (18.3×18.3mm, Orangey Red)
and
19ct Diopside Round (17.01×17.01mm, 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.
| 19 Ct Sunstone (Round) | 19 Ct Diopside (Round) | |
| 18.3×18.3 mm | vs | 17.01×17.01 mm |
| 263.02 mm² | 227.25 mm² |
| 19ct Sunstone Round (18.3×18.3mm) | |
| 19ct Diopside Round (17.01×17.01mm) | |
| Difference: 16% (35.77 mm²) |
19ct Sunstone (Round, 18.3×18.3mm) has approx. 16% more face-up area than 19ct Diopside (Round, 17.01×17.01mm).
Popular comparisons:
- 1ct Sunstone (Round, Orangey Red, 6.87 x 6.87) vs. 1ct Andesine (Round, Orange, 6.84 x 6.84)
- 1ct Sunstone (Round, Orangey Red, 6.86 x 6.86) vs. 1ct Emerald (Emerald, Green, 7.26 x 5.38)
- 12ct Sunstone (Round, Orangey Red, 15.7 x 15.7) vs. 12ct Diopside (Round, Green, 14.59 x 14.59)
- 1ct Sunstone (Round, Orangey Red, 6.86 x 6.86) vs. 1ct Almandine (Round, Dark Red, 5.95 x 5.95)
- 2.7ct Ruby (Pear, Red, 10 x 7) vs. 3ct Ruby (Emerald, Red, 9 x 7)
- 1.5ct Tourmaline (Round, Light Red, 7.45 x 7.45) vs. 1.5ct Sapphire (Round, Light Blue, 6.84 x 6.84)
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 1ct Tanzanite (Oval, Blue, 8.07 x 5.38)
- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Spinel (Oval, Gray, 8 x 6)
- 1.16ct Diamond (Round, White, 6.82 x 6.85) vs. 1.2ct Diamond (Round, White, 6.82 x 6.86)