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1.75ct Tanzanite (Oval, 9.72×6.48mm, Blue) vs 1.75ct Morganite (Oval, 10.4×6.93mm, Light Purple)


Quick summary: When looked from above (face-up position), 1.75ct Morganite (10.4×6.93mm, oval cut) appears 14% larger than 1.75ct Tanzanite (9.72×6.48mm, oval cut). See below how they compare side-by-side on a ring and finger.

1.75ct Tanzanite (oval cut)
vs
 1.75ct Morganite (oval cut)
blue
 
light purple
9.72×6.48 mm 10.4×6.93 mm
actual size
Actual size of 1.75ct Tanzanite (oval cut, 9.72×6.48mm, Blue color)   Actual size of 1.75ct Morganite (oval cut, 10.4×6.93mm, Light Purple color)
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Blue 1.75ct Tanzanite (oval cut, 9.72×6.48mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Light Purple 1.75ct Morganite (oval cut, 10.4×6.93mm) 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
 39% vs 42%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.75ct Tanzanite Oval (9.72×6.48mm, Blue) and 1.75ct Morganite Oval (10.4×6.93mm, 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

All things being equal, Tanzanite will face-up smaller than Morganite for a given carat weight, because it has higher specific gravity (3.35 vs. 2.8 - this means it's "heavier" compared to Morganite 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.


1.75 Ct Tanzanite (Oval) 1.75 Ct Morganite (Oval)
9.72×6.48 mm vs 10.4×6.93 mm
51.65 mm²   59.1 mm²
Face-up size outline for 1.75ct Morganite (10.4×6.93mm, oval cut)
Face-up size outline for 1.75ct Tanzanite (9.72×6.48mm, oval cut)
1.75ct Tanzanite Oval (9.72×6.48mm)
1.75ct Morganite Oval (10.4×6.93mm)
Difference: 14% (7.45 mm²)
1.75ct Morganite (Oval, 10.4×6.93mm) has approx. 14% more face-up area than 1.75ct Tanzanite (Oval, 9.72×6.48mm).


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