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30ct Topaz (Round, 19.37×19.37mm, Blue) vs 0.41ct Topaz (Round, 4.63×4.63mm, White)


Quick summary: When looked from above (face-up position), 30ct Topaz (19.37×19.37mm, round cut) appears 17.5 times larger than 0.41ct Topaz (4.63×4.63mm, round cut). See below how they compare side-by-side on a ring and finger.

30ct Topaz (round cut)
vs
 0.41ct Topaz (round cut)
blue
 
white
19.37×19.37 mm 4.63×4.63 mm
actual size
Actual size of 30ct Topaz (round cut, 19.37×19.37mm, Blue color)   Actual size of 0.41ct Topaz (round cut, 4.63×4.63mm, White color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 30ct Topaz (round cut, 19.37×19.37mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
White 0.41ct Topaz (round cut, 4.63×4.63mm) 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
 115% vs 28%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 30ct Topaz Round (19.37×19.37mm, Blue) and 0.41ct Topaz Round (4.63×4.63mm, 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

The face-up size depends on the shape of the gem, its weight and 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.


30 Ct Topaz (Round) 0.41 Ct Topaz (Round)
19.37×19.37 mm vs 4.63×4.63 mm
294.68 mm²   16.84 mm²
Face-up size outline for 30ct Topaz (19.37×19.37mm, round cut)
Face-up size outline for 0.41ct Topaz (4.63×4.63mm, round cut)
30ct Topaz Round (19.37×19.37mm)
0.41ct Topaz Round (4.63×4.63mm)
Difference: 1650% (277.84 mm²)
30ct Topaz (Round, 19.37×19.37mm) has approx. 1650% more face-up area than 0.41ct Topaz (Round, 4.63×4.63mm). In other words, it's 17.5x larger.


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