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4ct Tourmaline (Oval, 13.07×8.71mm, Violet) vs 3.5ct Tourmaline (Oval, 12.5×8.33mm, Violet)


Quick summary: When looked from above (face-up position), 4ct Tourmaline (13.07×8.71mm, oval cut) appears 9% larger than 3.5ct Tourmaline (12.5×8.33mm, oval cut). See below how they compare side-by-side on a ring and finger.

4ct Tourmaline (oval cut)
vs
 3.5ct Tourmaline (oval cut)
violet
 
violet
13.07×8.71 mm 12.5×8.33 mm
actual size
Actual size of 4ct Tourmaline (oval cut, 13.07×8.71mm, Violet color)   Actual size of 3.5ct Tourmaline (oval cut, 12.5×8.33mm, Violet color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Violet 4ct Tourmaline (oval cut, 13.07×8.71mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Violet 3.5ct Tourmaline (oval cut, 12.5×8.33mm) 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
 52% vs 50%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 4ct Tourmaline Oval (13.07×8.71mm, Violet) and 3.5ct Tourmaline Oval (12.5×8.33mm, 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.


4 Ct Tourmaline (Oval) 3.5 Ct Tourmaline (Oval)
13.07×8.71 mm vs 12.5×8.33 mm
93.35 mm²   85.38 mm²
Face-up size outline for 4ct Tourmaline (13.07×8.71mm, oval cut)
Face-up size outline for 3.5ct Tourmaline (12.5×8.33mm, oval cut)
4ct Tourmaline Oval (13.07×8.71mm)
3.5ct Tourmaline Oval (12.5×8.33mm)
Difference: 9% (7.97 mm²)
4ct Tourmaline (Oval, 13.07×8.71mm) has approx. 9% more face-up area than 3.5ct Tourmaline (Oval, 12.5×8.33mm).


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