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1ct Sapphire (Round, 6.5×6.5mm, Blue) vs 1.35ct Sapphire (Round, 7×7mm, Light Purple)


Quick summary: When looked from above (face-up position), 1.35ct Sapphire (7×7mm, round cut) appears 16% larger than 1ct Sapphire (6.5×6.5mm, round cut). See below how they compare side-by-side on a ring and finger.

1ct Sapphire (round cut)
vs
1.35ct Sapphire (round cut)
blue
 
light purple
6.5×6.5 mm 7×7 mm
actual size
Actual size of 1ct Sapphire (round cut, 6.5×6.5mm, Blue color)   Actual size of 1.35ct Sapphire (round cut, 7×7mm, Light Purple color)
 
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Ring: Skin tone:
Ring width: 3.0 mm
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Left finger image
Ring on left finger
Blue 1ct Sapphire (round cut, 6.5×6.5mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Purple 1.35ct Sapphire (round cut, 7×7mm) 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
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Ring diameter: 16.9 mm
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Actual sizes of 1ct Sapphire Round (6.5×6.5mm, Blue) and 1.35ct Sapphire Round (7×7mm, Light Purple) 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.


1 Ct Sapphire (Round) 1.35 Ct Sapphire (Round)
6.5×6.5 mm vs 7×7 mm
33.18 mm²   38.48 mm²
Face-up size outline for 1.35ct Sapphire (7×7mm, round cut)
Face-up size outline for 1ct Sapphire (6.5×6.5mm, round cut)
1ct Sapphire Round (6.5×6.5mm)
1.35ct Sapphire Round (7×7mm)
Difference: 16% (5.3 mm²)
1.35ct Sapphire Round (7×7mm) has approx. 16% more face-up area than 1ct Sapphire Round (6.5×6.5mm).


Popular comparisons:

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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.