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13ct Sinhalite (Oval, 18.89×12.59mm, Light Brown) vs 13ct Andesine (Oval, 20.63×13.75mm, Orange)


Quick summary: When looked from above (face-up position), 13ct Andesine (20.63×13.75mm, oval cut) appears 19% larger than 13ct Sinhalite (18.89×12.59mm, oval cut). See below how they compare side-by-side on a ring and finger.

13ct Sinhalite (oval cut)
vs
 13ct Andesine (oval cut)
light brown
 
orange
18.89×12.59 mm 20.63×13.75 mm
actual size
Actual size of 13ct Sinhalite (oval cut, 18.89×12.59mm, Light Brown color)   Actual size of 13ct Andesine (oval cut, 20.63×13.75mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Brown 13ct Sinhalite (oval cut, 18.89×12.59mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 13ct Andesine (oval cut, 20.63×13.75mm) 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
 75% vs 82%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 13ct Sinhalite Oval (18.89×12.59mm, Light Brown) and 13ct Andesine Oval (20.63×13.75mm, Orange) 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 Andesine for a given carat weight, because it has higher specific gravity (3.48 vs. 2.67 - this means it's "heavier" compared to Andesine 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 Sinhalite (Oval) 13 Ct Andesine (Oval)
18.89×12.59 mm vs 20.63×13.75 mm
195.02 mm²   232.6 mm²
Face-up size outline for 13ct Andesine (20.63×13.75mm, oval cut)
Face-up size outline for 13ct Sinhalite (18.89×12.59mm, oval cut)
13ct Sinhalite Oval (18.89×12.59mm)
13ct Andesine Oval (20.63×13.75mm)
Difference: 19% (37.58 mm²)
13ct Andesine (Oval, 20.63×13.75mm) has approx. 19% more face-up area than 13ct Sinhalite (Oval, 18.89×12.59mm).


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