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2ct Amethyst (Cushion, 8×8mm, Violet) vs 1ct Topaz (Cushion, 6×6mm, Blue)


Quick summary: When looked from above (face-up position), 2ct Amethyst (8×8mm, cushion cut) appears 78% larger than 1ct Topaz (6×6mm, cushion cut). See below how they compare side-by-side on a ring and finger.

2ct Amethyst (cushion cut)
vs
 1ct Topaz (cushion cut)
violet
 
blue
8×8 mm 6×6 mm
actual size
Actual size of 2ct Amethyst (cushion cut, 8×8mm, Violet color)   Actual size of 1ct Topaz (cushion cut, 6×6mm, Blue color)
 
Actual size is set for screen
Ring: Skin tone:
Ring width: 3.0 mm
Left finger image
Ring on left finger
Violet 2ct Amethyst (cushion cut, 8×8mm) on a left ring and finger
64 mm
Right finger image
Ring on a right finger
Blue 1ct Topaz (cushion cut, 6×6mm) 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 36%
Saved...
Ring diameter: 16.9 mm
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Actual sizes of 2ct Amethyst Cushion (8×8mm, Violet) and 1ct Topaz Cushion (6×6mm, 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, Topaz will face-up smaller than Amethyst for a given carat weight, because it has higher specific gravity (3.53 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.


2 Ct Amethyst (Cushion) 1 Ct Topaz (Cushion)
8×8 mm vs 6×6 mm
57.6 mm²   32.4 mm²
Face-up size outline for 2ct Amethyst (8×8mm, cushion cut)
Face-up size outline for 1ct Topaz (6×6mm, cushion cut)
2ct Amethyst Cushion (8×8mm)
1ct Topaz Cushion (6×6mm)
Difference: 78% (25.2 mm²)
2ct Amethyst (Cushion, 8×8mm) has approx. 78% more face-up area than 1ct Topaz (Cushion, 6×6mm).


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