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3ct Peridot (Oval, 11.58×7.72mm, Yellowish Green) vs 2ct Tanzanite (Oval, 10.16×6.77mm, Blue)


Quick summary: When looked from above (face-up position), 3ct Peridot (11.58×7.72mm, oval cut) appears 30% larger than 2ct Tanzanite (10.16×6.77mm, oval cut). See below how they compare side-by-side on a ring and finger.

3ct Peridot (oval cut)
vs
 2ct Tanzanite (oval cut)
yellowish green
 
blue
11.58×7.72 mm 10.16×6.77 mm
actual size
Actual size of 3ct Peridot (oval cut, 11.58×7.72mm, Yellowish Green color)   Actual size of 2ct Tanzanite (oval cut, 10.16×6.77mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Yellowish Green 3ct Peridot (oval cut, 11.58×7.72mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 2ct Tanzanite (oval cut, 10.16×6.77mm) 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
 46% vs 41%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 3ct Peridot Oval (11.58×7.72mm, Yellowish Green) and 2ct Tanzanite Oval (10.16×6.77mm, 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

All things being equal, Tanzanite will face-up slightly smaller than Peridot for a given carat weight, because it has higher specific gravity (3.35 vs. 3.34 - this means it's "slightly heavier" compared to Peridot 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.


3 Ct Peridot (Oval) 2 Ct Tanzanite (Oval)
11.58×7.72 mm vs 10.16×6.77 mm
73.31 mm²   56.4 mm²
Face-up size outline for 3ct Peridot (11.58×7.72mm, oval cut)
Face-up size outline for 2ct Tanzanite (10.16×6.77mm, oval cut)
3ct Peridot Oval (11.58×7.72mm)
2ct Tanzanite Oval (10.16×6.77mm)
Difference: 30% (16.91 mm²)
3ct Peridot (Oval, 11.58×7.72mm) has approx. 30% more face-up area than 2ct Tanzanite (Oval, 10.16×6.77mm).


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