×
carat vs. color  length*  width*
  ×

(or examine a )
* size in mm (optional)

1.2ct Tanzanite (Trillion, 7.96×7.96mm, Blue) vs 1ct Sapphire (Oval, 7.56×5.04mm, Blue)


Quick summary: When looked from above (face-up position), 1.2ct Tanzanite (7.96×7.96mm, trillion cut) appears 26% larger than 1ct Sapphire (7.56×5.04mm, oval cut). See below how they compare side-by-side on a ring and finger.

1.2ct Tanzanite (trillion cut)
vs
 1ct Sapphire (oval cut)
blue
 
blue
7.96×7.96 mm 7.56×5.04 mm
actual size
Actual size of 1.2ct Tanzanite (trillion cut, 7.96×7.96mm, Blue color)   Actual size of 1ct Sapphire (oval cut, 7.56×5.04mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 1.2ct Tanzanite (trillion cut, 7.96×7.96mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 1ct Sapphire (oval cut, 7.56×5.04mm) 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 30%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.2ct Tanzanite Trillion (7.96×7.96mm, Blue) and 1ct Sapphire Oval (7.56×5.04mm, 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 Tanzanite for a given carat weight, because it has higher specific gravity (4 vs. 3.35 - this means it's "heavier" compared to Tanzanite 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.


1.2 Ct Tanzanite (Trillion) 1 Ct Sapphire (Oval)
7.96×7.96 mm vs 7.56×5.04 mm
39.28 mm²   31.24 mm²
Face-up size outline for 1.2ct Tanzanite (7.96×7.96mm, trillion cut)
Face-up size outline for 1ct Sapphire (7.56×5.04mm, oval cut)
1.2ct Tanzanite Trillion (7.96×7.96mm)
1ct Sapphire Oval (7.56×5.04mm)
Difference: 26% (8.04 mm²)
1.2ct Tanzanite (Trillion, 7.96×7.96mm) has approx. 26% more face-up area than 1ct Sapphire (Oval, 7.56×5.04mm).


Popular comparisons: