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2.5ct Peridot (Marquise, 14.22×7.11mm, Yellowish Green) vs 0.45ct Diamond (Baguette, 6.85×3.25mm, Dark Blue)


Quick summary: When looked from above (face-up position), 2.5ct Peridot (14.22×7.11mm, marquise cut) appears 3.2 times larger than 0.45ct Colored Diamond (6.85×3.25mm, baguette cut). See below how they compare side-by-side on a ring and finger.

2.5ct Peridot (marquise cut)
vs
 0.45ct Diamond (baguette cut)
yellowish green
 
dark blue
14.22×7.11 mm 6.85×3.25 mm
actual size
Actual size of 2.5ct Peridot (marquise cut, 14.22×7.11mm, Yellowish Green color)   Actual size of 0.45ct Diamond (baguette cut, 6.85×3.25mm, Dark 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 2.5ct Peridot (marquise cut, 14.22×7.11mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Dark Blue 0.45ct Diamond (baguette cut, 6.85×3.25mm) 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
 43% vs 20%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.5ct Peridot Marquise (14.22×7.11mm, Yellowish Green) and 0.45ct Diamond Baguette (6.85×3.25mm, Dark 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, Diamond will face-up smaller than Peridot for a given carat weight, because it has higher specific gravity (3.52 vs. 3.34 - this means it's "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.


2.5 Ct Peridot (Marquise) 0.45 Ct Colored Diamond (Baguette)
14.22×7.11 mm vs 6.85×3.25 mm
71.78 mm²   22.26 mm²
Face-up size outline for 2.5ct Peridot (14.22×7.11mm, marquise cut)
Face-up size outline for 0.45ct Diamond (6.85×3.25mm, baguette cut)
2.5ct Peridot Marquise (14.22×7.11mm)
0.45ct Colored Diamond Baguette (6.85×3.25mm)
Difference: 222% (49.52 mm²)
2.5ct Peridot (Marquise, 14.22×7.11mm) has approx. 222% more face-up area than 0.45ct Colored Diamond (Baguette, 6.85×3.25mm). In other words, it's 3.22x larger.


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