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3.55ct Quartz (Baguette, 12.12×8.08mm, Gray) vs 1.65ct Sapphire (Round, 7.06×7.06mm, Light Blue)


Quick summary: When looked from above (face-up position), 3.55ct Quartz (12.12×8.08mm, baguette cut) appears 2.5 times larger than 1.65ct Sapphire (7.06×7.06mm, round cut). See below how they compare side-by-side on a ring and finger.

3.55ct Quartz (baguette cut)
vs
 1.65ct Sapphire (round cut)
gray
 
light blue
12.12×8.08 mm 7.06×7.06 mm
actual size
Actual size of 3.55ct Quartz (baguette cut, 12.12×8.08mm, Gray color)   Actual size of 1.65ct Sapphire (round cut, 7.06×7.06mm, Light Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Gray 3.55ct Quartz (baguette cut, 12.12×8.08mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Blue 1.65ct Sapphire (round cut, 7.06×7.06mm) 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
 48% vs 42%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 3.55ct Quartz Baguette (12.12×8.08mm, Gray) and 1.65ct Sapphire Round (7.06×7.06mm, Light 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, Sapphire will face-up smaller than Quartz for a given carat weight, because it has higher specific gravity (4 vs. 2.65 - this means it's "heavier" compared to Quartz 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.


3.55 Ct Quartz (Baguette) 1.65 Ct Sapphire (Round)
12.12×8.08 mm vs 7.06×7.06 mm
97.93 mm²   39.15 mm²
Face-up size outline for 3.55ct Quartz (12.12×8.08mm, baguette cut)
Face-up size outline for 1.65ct Sapphire (7.06×7.06mm, round cut)
3.55ct Quartz Baguette (12.12×8.08mm)
1.65ct Sapphire Round (7.06×7.06mm)
Difference: 150% (58.78 mm²)
3.55ct Quartz (Baguette, 12.12×8.08mm) has approx. 150% more face-up area than 1.65ct Sapphire (Round, 7.06×7.06mm). In other words, it's 2.5x larger.


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