×
carat vs. color  length*  width*
  ×

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

13ct Topaz (Round, 14.66×14.66mm, Blue) vs 1ct Topaz (Round, 6.5×6.5mm, Blue)


Quick summary: When looked from above (face-up position), 13ct Topaz (14.66×14.66mm, round cut) appears 5.1 times larger than 1ct Topaz (6.5×6.5mm, round cut). See below how they compare side-by-side on a ring and finger.

13ct Topaz (round cut)
vs
 1ct Topaz (round cut)
blue
 
blue
14.66×14.66 mm 6.5×6.5 mm
actual size
Actual size of 13ct Topaz (round cut, 14.66×14.66mm, Blue color)   Actual size of 1ct Topaz (round cut, 6.5×6.5mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 13ct Topaz (round cut, 14.66×14.66mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 1ct Topaz (round cut, 6.5×6.5mm) 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
 87% vs 39%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 13ct Topaz Round (14.66×14.66mm, Blue) and 1ct Topaz Round (6.5×6.5mm, Blue) 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.


13 Ct Topaz (Round) 1 Ct Topaz (Round)
14.66×14.66 mm vs 6.5×6.5 mm
168.79 mm²   33.18 mm²
Face-up size outline for 13ct Topaz (14.66×14.66mm, round cut)
Face-up size outline for 1ct Topaz (6.5×6.5mm, round cut)
13ct Topaz Round (14.66×14.66mm)
1ct Topaz Round (6.5×6.5mm)
Difference: 409% (135.61 mm²)
13ct Topaz (Round, 14.66×14.66mm) has approx. 409% more face-up area than 1ct Topaz (Round, 6.5×6.5mm). In other words, it's 5.09x larger.


Popular comparisons: