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20 Ct Sapphire (Baguette)

vs

15 Ct Peridot (Oval)

blue
 
yellowish green
18.81×12.54 mm 19.79×13.19 mm
actual size
Actual size of 20ct Sapphire   Actual size of 15ct Peridot
 
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Ring: Skin tone:
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Left finger image
Ring on left finger
Blue 20ct Sapphire on a ring
64 mm
Right finger image
Ring on a right finger
Yellowish Green 15ct Peridot on a ring
Your settings
Ring
Gold
Skin tone
Light
Ring diameter
16.9 mm
Ring width
3.0 mm
Finger length
64 mm
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Ring diameter: 16.9 mm
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Actual sizes of 20ct Sapphire Baguette (18.81×12.54mm, Blue) and 15ct Peridot Oval (19.79×13.19mm, Yellowish Green) 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?

JamesAllen → high-quality blue Sapphires, high-end jewelry and competitive prices. Highly recommended.
Amazon → usually offers a good selection from many different vendors. Worth a check.

Face-up Size

All things being equal, Sapphire will face-up smaller than Peridot for a given carat weight, because it has higher specific gravity (4 vs. 3.35 - 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.


20 Ct Sapphire (Baguette) 15 Ct Peridot (Oval)
18.81×12.54 mm vs 19.79×13.19 mm
235.88 mm²   214.04 mm²
Face-up size outline
Face-up size outline
20ct Sapphire Baguette (18.81×12.54mm)
15ct Peridot Oval (19.79×13.19mm)
Difference: 10% (21.84 mm²)
20ct Sapphire Baguette (18.81×12.54mm) has approx. 10% more face-up area than 15ct Peridot Oval (19.79×13.19mm).


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Actual size is currently adjusted to screen.

If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.