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2.5ct Topaz (Cabochon, 9.69×6.46mm, Blue) vs 2.5ct Beryl (Cabochon, 10.56×7.04mm, Orange)


Quick summary: When looked from above (face-up position), 2.5ct Beryl (10.56×7.04mm, cabochon cut) appears 19% larger than 2.5ct Topaz (9.69×6.46mm, cabochon cut). See below how they compare side-by-side on a ring and finger.

2.5ct Topaz (cabochon cut)
vs
 2.5ct Beryl (cabochon cut)
blue
 
orange
9.69×6.46 mm 10.56×7.04 mm
actual size
Actual size of 2.5ct Topaz (cabochon cut, 9.69×6.46mm, Blue color)   Actual size of 2.5ct Beryl (cabochon cut, 10.56×7.04mm, Orange color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 2.5ct Topaz (cabochon cut, 9.69×6.46mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Orange 2.5ct Beryl (cabochon cut, 10.56×7.04mm) 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
 39% vs 42%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.5ct Topaz Cabochon (9.69×6.46mm, Blue) and 2.5ct Beryl Cabochon (10.56×7.04mm, 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, Topaz will face-up smaller than Beryl for a given carat weight, because it has higher specific gravity (3.53 vs. 2.72 - this means it's "heavier" compared to Beryl 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.


2.5 Ct Topaz (Cabochon) 2.5 Ct Beryl (Cabochon)
9.69×6.46 mm vs 10.56×7.04 mm
51.33 mm²   60.96 mm²
Face-up size outline for 2.5ct Beryl (10.56×7.04mm, cabochon cut)
Face-up size outline for 2.5ct Topaz (9.69×6.46mm, cabochon cut)
2.5ct Topaz Cabochon (9.69×6.46mm)
2.5ct Beryl Cabochon (10.56×7.04mm)
Difference: 19% (9.63 mm²)
2.5ct Beryl (Cabochon, 10.56×7.04mm) has approx. 19% more face-up area than 2.5ct Topaz (Cabochon, 9.69×6.46mm).


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