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13ct Sinhalite (Cabochon, 16.86×11.24mm, Light Brown) vs 13ct Andesine (Cabochon, 18.41×12.27mm, Orange)


Quick summary: When looked from above (face-up position), 13ct Andesine (18.41×12.27mm, cabochon cut) appears 19% larger than 13ct Sinhalite (16.86×11.24mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

13ct Sinhalite (cabochon cut)
vs
 13ct Andesine (cabochon cut)
light brown
 
orange
16.86×11.24 mm 18.41×12.27 mm
actual size
Actual size of 13ct Sinhalite (cabochon cut, 16.86×11.24mm, Light Brown color)   Actual size of 13ct Andesine (cabochon cut, 18.41×12.27mm, 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 (cabochon cut, 16.86×11.24mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 13ct Andesine (cabochon cut, 18.41×12.27mm) 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
 67% vs 73%
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Ring diameter: 16.9 mm
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Actual sizes of 13ct Sinhalite Cabochon (16.86×11.24mm, Light Brown) and 13ct Andesine Cabochon (18.41×12.27mm, 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 (Cabochon) 13 Ct Andesine (Cabochon)
16.86×11.24 mm vs 18.41×12.27 mm
155.4 mm²   185.23 mm²
Face-up size outline for 13ct Andesine (18.41×12.27mm, cabochon cut)
Face-up size outline for 13ct Sinhalite (16.86×11.24mm, cabochon cut)
13ct Sinhalite Cabochon (16.86×11.24mm)
13ct Andesine Cabochon (18.41×12.27mm)
Difference: 19% (29.83 mm²)
13ct Andesine (Cabochon, 18.41×12.27mm) has approx. 19% more face-up area than 13ct Sinhalite (Cabochon, 16.86×11.24mm).


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