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0.3ct Tourmaline (Round, 4.36×4.36mm, Violet) vs 0.25ct Tourmaline (Round, 4.1×4.1mm, Violet)


Quick summary: When looked from above (face-up position), 0.3ct Tourmaline (4.36×4.36mm, round cut) appears 13% larger than 0.25ct Tourmaline (4.1×4.1mm, round cut). See below how they compare side-by-side on a ring and finger.

0.3ct Tourmaline (round cut)
vs
 0.25ct Tourmaline (round cut)
violet
 
violet
4.36×4.36 mm 4.1×4.1 mm
actual size
Actual size of 0.3ct Tourmaline (round cut, 4.36×4.36mm, Violet color)   Actual size of 0.25ct Tourmaline (round cut, 4.1×4.1mm, Violet color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Violet 0.3ct Tourmaline (round cut, 4.36×4.36mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Violet 0.25ct Tourmaline (round cut, 4.1×4.1mm) 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
 26% vs 25%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.3ct Tourmaline Round (4.36×4.36mm, Violet) and 0.25ct Tourmaline Round (4.1×4.1mm, Violet) 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.


0.3 Ct Tourmaline (Round) 0.25 Ct Tourmaline (Round)
4.36×4.36 mm vs 4.1×4.1 mm
14.93 mm²   13.2 mm²
Face-up size outline for 0.3ct Tourmaline (4.36×4.36mm, round cut)
Face-up size outline for 0.25ct Tourmaline (4.1×4.1mm, round cut)
0.3ct Tourmaline Round (4.36×4.36mm)
0.25ct Tourmaline Round (4.1×4.1mm)
Difference: 13% (1.73 mm²)
0.3ct Tourmaline (Round, 4.36×4.36mm) has approx. 13% more face-up area than 0.25ct Tourmaline (Round, 4.1×4.1mm).


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