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7.5ct Sapphire (Emerald, 12.5×9.26mm, Blue) vs 1ct Peridot (Oval, 8.03×5.35mm, Yellowish Green)


Quick summary: When looked from above (face-up position), 7.5ct Sapphire (12.5×9.26mm, emerald cut) appears 3.1 times larger than 1ct Peridot (8.03×5.35mm, oval cut). See below how they compare side-by-side on a ring and finger.

7.5ct Sapphire (emerald cut)
vs
 1ct Peridot (oval cut)
blue
 
yellowish green
12.5×9.26 mm 8.03×5.35 mm
actual size
Actual size of 7.5ct Sapphire (emerald cut, 12.5×9.26mm, Blue color)   Actual size of 1ct Peridot (oval cut, 8.03×5.35mm, Yellowish Green color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 7.5ct Sapphire (emerald cut, 12.5×9.26mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Yellowish Green 1ct Peridot (oval cut, 8.03×5.35mm) 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
 55% vs 32%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 7.5ct Sapphire Emerald (12.5×9.26mm, Blue) and 1ct Peridot Oval (8.03×5.35mm, 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?

For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile

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. 3.34 - 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.


7.5 Ct Sapphire (Emerald) 1 Ct Peridot (Oval)
12.5×9.26 mm vs 8.03×5.35 mm
107.65 mm²   35.23 mm²
Face-up size outline for 7.5ct Sapphire (12.5×9.26mm, emerald cut)
Face-up size outline for 1ct Peridot (8.03×5.35mm, oval cut)
7.5ct Sapphire Emerald (12.5×9.26mm)
1ct Peridot Oval (8.03×5.35mm)
Difference: 206% (72.42 mm²)
7.5ct Sapphire (Emerald, 12.5×9.26mm) has approx. 206% more face-up area than 1ct Peridot (Oval, 8.03×5.35mm). In other words, it's 3.06x larger.


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