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1ct Topaz (Round, 6.5×6.5mm, Blue) vs 0.85ct Topaz (Round, 6×6mm, Blue)


Quick summary: When looked from above (face-up position), 1ct Topaz (6.5×6.5mm, round cut) appears 17% larger than 0.85ct Topaz (6×6mm, round cut). See below how they compare side-by-side on a ring and finger.

1ct Topaz (round cut)
vs
 0.85ct Topaz (round cut)
blue
 
blue
6.5×6.5 mm 6×6 mm
actual size
Actual size of 1ct Topaz (round cut, 6.5×6.5mm, Blue color)   Actual size of 0.85ct Topaz (round cut, 6×6mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 1ct Topaz (round cut, 6.5×6.5mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 0.85ct Topaz (round cut, 6×6mm) 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 36%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 1ct Topaz Round (6.5×6.5mm, Blue) and 0.85ct Topaz Round (6×6mm, 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.


1 Ct Topaz (Round) 0.85 Ct Topaz (Round)
6.5×6.5 mm vs 6×6 mm
33.18 mm²   28.27 mm²
Face-up size outline for 1ct Topaz (6.5×6.5mm, round cut)
Face-up size outline for 0.85ct Topaz (6×6mm, round cut)
1ct Topaz Round (6.5×6.5mm)
0.85ct Topaz Round (6×6mm)
Difference: 17% (4.91 mm²)
1ct Topaz (Round, 6.5×6.5mm) has approx. 17% more face-up area than 0.85ct Topaz (Round, 6×6mm).


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