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2.75ct Sapphire (Oval, 9.36×7.38mm, Blue) vs 2.78ct Sapphire (Round, 7.8×7.8mm, Blue)


Quick summary: When looked from above (face-up position), 2.75ct Sapphire (9.36×7.38mm, oval cut) appears 19% larger than 2.78ct Sapphire (7.8×7.8mm, round cut). See below how they compare side-by-side on a ring and finger.

2.75ct Sapphire (oval cut)
vs
 2.78ct Sapphire (round cut)
blue
 
blue
9.36×7.38 mm 7.8×7.8 mm
actual size
Actual size of 2.75ct Sapphire (oval cut, 9.36×7.38mm, Blue color)   Actual size of 2.78ct Sapphire (round cut, 7.8×7.8mm, Blue color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 2.75ct Sapphire (oval cut, 9.36×7.38mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 2.78ct Sapphire (round cut, 7.8×7.8mm) 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
 44% vs 47%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 2.75ct Sapphire Oval (9.36×7.38mm, Blue) and 2.78ct Sapphire Round (7.8×7.8mm, 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

The face-up size depends on the shape of the gem, its weight and 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.


2.75 Ct Sapphire (Oval) 2.78 Ct Sapphire (Round)
9.36×7.38 mm vs 7.8×7.8 mm
56.64 mm²   47.78 mm²
Face-up size outline for 2.75ct Sapphire (9.36×7.38mm, oval cut)
Face-up size outline for 2.78ct Sapphire (7.8×7.8mm, round cut)
2.75ct Sapphire Oval (9.36×7.38mm)
2.78ct Sapphire Round (7.8×7.8mm)
Difference: 19% (8.86 mm²)
2.75ct Sapphire (Oval, 9.36×7.38mm) has approx. 19% more face-up area than 2.78ct Sapphire (Round, 7.8×7.8mm).


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