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1.9ct Tanzanite (Emerald, 8.44×6.25mm, Light Blue) vs 1.2ct Amethyst (Princess, 6.55×6.55mm, Violet)


Quick summary: When looked from above (face-up position), 1.9ct Tanzanite (8.44×6.25mm, emerald cut) appears 14% larger than 1.2ct Amethyst (6.55×6.55mm, princess cut). See below how they compare side-by-side on a ring and finger.

1.9ct Tanzanite (emerald cut)
vs
 1.2ct Amethyst (princess cut)
light blue
 
violet
8.44×6.25 mm 6.55×6.55 mm
actual size
Actual size of 1.9ct Tanzanite (emerald cut, 8.44×6.25mm, Light Blue color)   Actual size of 1.2ct Amethyst (princess cut, 6.55×6.55mm, Violet color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Light Blue 1.9ct Tanzanite (emerald cut, 8.44×6.25mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Violet 1.2ct Amethyst (princess cut, 6.55×6.55mm) 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
 37% vs 39%
Saved...
Ring diameter: 16.9 mm
USA UK Asia EU1 EU2
Actual sizes of 1.9ct Tanzanite Emerald (8.44×6.25mm, Light Blue) and 1.2ct Amethyst Princess (6.55×6.55mm, Violet) 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 Amethyst for a given carat weight, because it has higher specific gravity (3.35 vs. 2.65 - this means it's "heavier" compared to Amethyst 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.


1.9 Ct Tanzanite (Emerald) 1.2 Ct Amethyst (Princess)
8.44×6.25 mm vs 6.55×6.55 mm
49.06 mm²   42.9 mm²
Face-up size outline for 1.9ct Tanzanite (8.44×6.25mm, emerald cut)
Face-up size outline for 1.2ct Amethyst (6.55×6.55mm, princess cut)
1.9ct Tanzanite Emerald (8.44×6.25mm)
1.2ct Amethyst Princess (6.55×6.55mm)
Difference: 14% (6.16 mm²)
1.9ct Tanzanite (Emerald, 8.44×6.25mm) has approx. 14% more face-up area than 1.2ct Amethyst (Princess, 6.55×6.55mm).


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