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3ct Topaz (Oval, 11×9mm, Blue) vs 4ct Topaz (Oval, 12×10mm, Blue)


Quick summary: When looked from above (face-up position), 4ct Topaz (12×10mm, oval cut) appears 21% larger than 3ct Topaz (11×9mm, oval cut). See below how they compare side-by-side on a ring and finger. 

3ct Topaz (oval cut)
vs
 4ct Topaz (oval cut)
blue
 
blue
11×9 mm 12×10 mm
actual size
Actual size of 3ct Topaz (oval cut, 11×9mm, Blue color)   Actual size of 4ct Topaz (oval cut, 12×10mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 3ct Topaz (oval cut, 11×9mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 4ct Topaz (oval cut, 12×10mm) 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
 54% vs 60%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3ct Topaz Oval (11×9mm, Blue) and 4ct Topaz Oval (12×10mm, 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.


3 Ct Topaz (Oval) 4 Ct Topaz (Oval)
11×9 mm vs 12×10 mm
81.18 mm²   98.4 mm²
Face-up size outline for 4ct Topaz (12×10mm, oval cut)
Face-up size outline for 3ct Topaz (11×9mm, oval cut)
3ct Topaz Oval (11×9mm)
4ct Topaz Oval (12×10mm)
Difference: 21% (17.22 mm²)
4ct Topaz (Oval, 12×10mm) has approx. 21% more face-up area than 3ct Topaz (Oval, 11×9mm).


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