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13ct Sunstone (Marquise, 26.22×13.11mm, Orangey Red) vs 13ct Diopside (Marquise, 24.38×12.19mm, Green)


Quick summary: When looked from above (face-up position), 13ct Sunstone (26.22×13.11mm, marquise cut) appears 16% larger than 13ct Diopside (24.38×12.19mm, marquise cut). See below how they compare side-by-side on a ring and finger.

13ct Sunstone (marquise cut)
vs
 13ct Diopside (marquise cut)
orangey red
 
green
26.22×13.11 mm 24.38×12.19 mm
actual size
Actual size of 13ct Sunstone (marquise cut, 26.22×13.11mm, Orangey Red color)   Actual size of 13ct Diopside (marquise cut, 24.38×12.19mm, 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 13ct Sunstone (marquise cut, 26.22×13.11mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Green 13ct Diopside (marquise cut, 24.38×12.19mm) 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 73%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 13ct Sunstone Marquise (26.22×13.11mm, Orangey Red) and 13ct Diopside Marquise (24.38×12.19mm, 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.


13 Ct Sunstone (Marquise) 13 Ct Diopside (Marquise)
26.22×13.11 mm vs 24.38×12.19 mm
244.06 mm²   211.01 mm²
Face-up size outline for 13ct Sunstone (26.22×13.11mm, marquise cut)
Face-up size outline for 13ct Diopside (24.38×12.19mm, marquise cut)
13ct Sunstone Marquise (26.22×13.11mm)
13ct Diopside Marquise (24.38×12.19mm)
Difference: 16% (33.05 mm²)
13ct Sunstone (Marquise, 26.22×13.11mm) has approx. 16% more face-up area than 13ct Diopside (Marquise, 24.38×12.19mm).


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