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10.6ct Topaz (Round, 13.69×13.69mm, Blue) vs 0.8ct Diamond (Round, 6.1×6.1mm, White)


Quick summary: When looked from above (face-up position), 10.6ct Topaz (13.69×13.69mm, round cut) appears 5 times larger than 0.8ct Diamond (6.1×6.1mm, round cut). See below how they compare side-by-side on a ring and finger.

10.6ct Topaz (round cut)
vs
 0.8ct Diamond (round cut)
blue
 
white
13.69×13.69 mm 6.1×6.1 mm
actual size
Actual size of 10.6ct Topaz (round cut, 13.69×13.69mm, Blue color)   Actual size of 0.8ct Diamond (round cut, 6.1×6.1mm, White color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 10.6ct Topaz (round cut, 13.69×13.69mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.8ct Diamond (round cut, 6.1×6.1mm) 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
 82% vs 37%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 10.6ct Topaz Round (13.69×13.69mm, Blue) and 0.8ct Diamond Round (6.1×6.1mm, White) 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 slightly smaller than Diamond for a given carat weight, because it has higher specific gravity (3.53 vs. 3.52 - this means it's "slightly heavier" compared to Diamond 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.


10.6 Ct Topaz (Round) 0.8 Ct Diamond (Round)
13.69×13.69 mm vs 6.1×6.1 mm
147.2 mm²   29.22 mm²
Face-up size outline for 10.6ct Topaz (13.69×13.69mm, round cut)
Face-up size outline for 0.8ct Diamond (6.1×6.1mm, round cut)
10.6ct Topaz Round (13.69×13.69mm)
0.8ct Diamond Round (6.1×6.1mm)
Difference: 404% (117.98 mm²)
10.6ct Topaz (Round, 13.69×13.69mm) has approx. 404% more face-up area than 0.8ct Diamond (Round, 6.1×6.1mm). In other words, it's 5.04x larger.


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