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1ct Chrysoberyl (Trillion, 7.21×7.21mm, Light Yellowish Green) vs 0.75ct Spinel (Pear, 7.82×4.71mm, Red)


Quick summary: When looked from above (face-up position), 1ct Chrysoberyl (7.21×7.21mm, trillion cut) appears 20% larger than 0.75ct Spinel (7.82×4.71mm, pear cut). See below how they compare side-by-side on a ring and finger.

1ct Chrysoberyl (trillion cut)
vs
 0.75ct Spinel (pear cut)
light yellowish green
 
red
7.21×7.21 mm 7.82×4.71 mm
actual size
Actual size of 1ct Chrysoberyl (trillion cut, 7.21×7.21mm, Light Yellowish Green color)   Actual size of 0.75ct Spinel (pear cut, 7.82×4.71mm, Red color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Yellowish Green 1ct Chrysoberyl (trillion cut, 7.21×7.21mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Red 0.75ct Spinel (pear cut, 7.82×4.71mm) 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
 43% vs 28%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1ct Chrysoberyl Trillion (7.21×7.21mm, Light Yellowish Green) and 0.75ct Spinel Pear (7.82×4.71mm, 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, Chrysoberyl will face-up smaller than Spinel for a given carat weight, because it has higher specific gravity (3.73 vs. 3.6 - this means it's "heavier" compared to Spinel 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.


1 Ct Chrysoberyl (Trillion) 0.75 Ct Spinel (Pear)
7.21×7.21 mm vs 7.82×4.71 mm
32.23 mm²   26.89 mm²
Face-up size outline for 1ct Chrysoberyl (7.21×7.21mm, trillion cut)
Face-up size outline for 0.75ct Spinel (7.82×4.71mm, pear cut)
1ct Chrysoberyl Trillion (7.21×7.21mm)
0.75ct Spinel Pear (7.82×4.71mm)
Difference: 20% (5.34 mm²)
1ct Chrysoberyl (Trillion, 7.21×7.21mm) has approx. 20% more face-up area than 0.75ct Spinel (Pear, 7.82×4.71mm).


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