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0.25ct Ruby (Pear, 5.23×3.15mm, Red) vs 0.32ct Tourmaline (Round, 4.45×4.45mm, Violet)


Quick summary: When looked from above (face-up position), 0.32ct Tourmaline (4.45×4.45mm, round cut) appears 29% larger than 0.25ct Ruby (5.23×3.15mm, pear cut). See below how they compare side-by-side on a ring and finger.

0.25ct Ruby (pear cut)
vs
 0.32ct Tourmaline (round cut)
red
 
violet
5.23×3.15 mm 4.45×4.45 mm
actual size
Actual size of 0.25ct Ruby (pear cut, 5.23×3.15mm, Red color)   Actual size of 0.32ct Tourmaline (round cut, 4.45×4.45mm, Violet color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Red 0.25ct Ruby (pear cut, 5.23×3.15mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Violet 0.32ct Tourmaline (round cut, 4.45×4.45mm) 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
 19% vs 27%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 0.25ct Ruby Pear (5.23×3.15mm, Red) and 0.32ct Tourmaline Round (4.45×4.45mm, 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

All things being equal, Ruby will face-up smaller than Tourmaline for a given carat weight, because it has higher specific gravity (4 vs. 3.06 - this means it's "heavier" compared to Tourmaline of the same size). Face-up size also depends heavily on 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.


0.25 Ct Ruby (Pear) 0.32 Ct Tourmaline (Round)
5.23×3.15 mm vs 4.45×4.45 mm
12.03 mm²   15.55 mm²
Face-up size outline for 0.32ct Tourmaline (4.45×4.45mm, round cut)
Face-up size outline for 0.25ct Ruby (5.23×3.15mm, pear cut)
0.25ct Ruby Pear (5.23×3.15mm)
0.32ct Tourmaline Round (4.45×4.45mm)
Difference: 29% (3.52 mm²)
0.32ct Tourmaline (Round, 4.45×4.45mm) has approx. 29% more face-up area than 0.25ct Ruby (Pear, 5.23×3.15mm).


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