×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

17ct Spinel (Trillion, 19.47×19.47mm, Red) vs 17ct Andesine (Trillion, 21.51×21.51mm, Orange)


Quick summary: When looked from above (face-up position), 17ct Andesine (21.51×21.51mm, trillion cut) appears 22% larger than 17ct Spinel (19.47×19.47mm, trillion cut). See below how they compare side-by-side on a ring and finger.

17ct Spinel (trillion cut)
vs
 17ct Andesine (trillion cut)
red
 
orange
19.47×19.47 mm 21.51×21.51 mm
actual size
Actual size of 17ct Spinel (trillion cut, 19.47×19.47mm, Red color)   Actual size of 17ct Andesine (trillion cut, 21.51×21.51mm, Orange color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 17ct Spinel (trillion cut, 19.47×19.47mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 17ct Andesine (trillion cut, 21.51×21.51mm) 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
 116% vs 128%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 17ct Spinel Trillion (19.47×19.47mm, Red) and 17ct Andesine Trillion (21.51×21.51mm, 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, Spinel will face-up smaller than Andesine for a given carat weight, because it has higher specific gravity (3.6 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.


17 Ct Spinel (Trillion) 17 Ct Andesine (Trillion)
19.47×19.47 mm vs 21.51×21.51 mm
235.03 mm²   286.86 mm²
Face-up size outline for 17ct Andesine (21.51×21.51mm, trillion cut)
Face-up size outline for 17ct Spinel (19.47×19.47mm, trillion cut)
17ct Spinel Trillion (19.47×19.47mm)
17ct Andesine Trillion (21.51×21.51mm)
Difference: 22% (51.83 mm²)
17ct Andesine (Trillion, 21.51×21.51mm) has approx. 22% more face-up area than 17ct Spinel (Trillion, 19.47×19.47mm).


Popular comparisons: