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11ct Sunstone (Oval, 19.56×13.04mm, Orangey Red) vs 11ct Diopside (Oval, 18.18×12.12mm, Green)


Quick summary: When looked from above (face-up position), 11ct Sunstone (19.56×13.04mm, oval cut) appears 16% larger than 11ct Diopside (18.18×12.12mm, oval cut). See below how they compare side-by-side on a ring and finger.

11ct Sunstone (oval cut)
vs
 11ct Diopside (oval cut)
orangey red
 
green
19.56×13.04 mm 18.18×12.12 mm
actual size
Actual size of 11ct Sunstone (oval cut, 19.56×13.04mm, Orangey Red color)   Actual size of 11ct Diopside (oval cut, 18.18×12.12mm, Green color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Orangey Red 11ct Sunstone (oval cut, 19.56×13.04mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 11ct Diopside (oval cut, 18.18×12.12mm) on a right ring and finger
Your settings
Ring
 Gold
Skin tone
 Light
Ring diameter
 16.9 mm
Ring width
 3.0 mm
Finger length
 64 mm
Finger coverage
 78% vs 72%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 11ct Sunstone Oval (19.56×13.04mm, Orangey Red) and 11ct Diopside Oval (18.18×12.12mm, 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.


11 Ct Sunstone (Oval) 11 Ct Diopside (Oval)
19.56×13.04 mm vs 18.18×12.12 mm
209.15 mm²   180.68 mm²
Face-up size outline for 11ct Sunstone (19.56×13.04mm, oval cut)
Face-up size outline for 11ct Diopside (18.18×12.12mm, oval cut)
11ct Sunstone Oval (19.56×13.04mm)
11ct Diopside Oval (18.18×12.12mm)
Difference: 16% (28.47 mm²)
11ct Sunstone (Oval, 19.56×13.04mm) has approx. 16% more face-up area than 11ct Diopside (Oval, 18.18×12.12mm).


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