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0.25ct Sinhalite (Marquise, 6.42×3.21mm, Light Brown) vs 0.25ct Sunstone (Marquise, 7.02×3.51mm, Orangey Red)


Quick summary: When looked from above (face-up position), 0.25ct Sunstone (7.02×3.51mm, marquise cut) appears 20% larger than 0.25ct Sinhalite (6.42×3.21mm, marquise cut). See below how they compare side-by-side on a ring and finger.

0.25ct Sinhalite (marquise cut)
vs
 0.25ct Sunstone (marquise cut)
light brown
 
orangey red
6.42×3.21 mm 7.02×3.51 mm
actual size
Actual size of 0.25ct Sinhalite (marquise cut, 6.42×3.21mm, Light Brown color)   Actual size of 0.25ct Sunstone (marquise cut, 7.02×3.51mm, Orangey Red color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Brown 0.25ct Sinhalite (marquise cut, 6.42×3.21mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orangey Red 0.25ct Sunstone (marquise cut, 7.02×3.51mm) 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
 19% vs 21%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.25ct Sinhalite Marquise (6.42×3.21mm, Light Brown) and 0.25ct Sunstone Marquise (7.02×3.51mm, Orangey Red) 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, Sinhalite will face-up smaller than Sunstone for a given carat weight, because it has higher specific gravity (3.48 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.


0.25 Ct Sinhalite (Marquise) 0.25 Ct Sunstone (Marquise)
6.42×3.21 mm vs 7.02×3.51 mm
14.63 mm²   17.49 mm²
Face-up size outline for 0.25ct Sunstone (7.02×3.51mm, marquise cut)
Face-up size outline for 0.25ct Sinhalite (6.42×3.21mm, marquise cut)
0.25ct Sinhalite Marquise (6.42×3.21mm)
0.25ct Sunstone Marquise (7.02×3.51mm)
Difference: 20% (2.86 mm²)
0.25ct Sunstone (Marquise, 7.02×3.51mm) has approx. 20% more face-up area than 0.25ct Sinhalite (Marquise, 6.42×3.21mm).


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