0.8ct Amethyst (Oval, 8.06×5.37mm, Violet) vs 1.2ct Diamond (Oval, 8.63×5.75mm, White)
Quick summary: When looked from above (face-up position), 1.2ct Diamond (8.63×5.75mm, oval cut) appears 15% larger than 0.8ct Amethyst (8.06×5.37mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 0.8ct Amethyst (oval cut) |
vs
|
1.2ct Diamond (oval cut) |
|
violet |
|
|
| 8.06×5.37 mm | 8.63×5.75 mm | |
| actual size | ||
|
|
|
|
|
||
Actual size is set for screen
|
Ring:
Skin tone:
Ring width: 3.0 mm
|
|
64 mm |
|
|
|||||||||||||||||
|
|||||||||||||||||||||
Actual sizes of
0.8ct Amethyst Oval (8.06×5.37mm, Violet)
and
1.2ct Diamond Oval (8.63×5.75mm, White)
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, Diamond will face-up smaller than Amethyst for a given
carat weight, because it has higher specific gravity
(3.52 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.
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.
| 0.8 Ct Amethyst (Oval) | 1.2 Ct Diamond (Oval) | |
| 8.06×5.37 mm | vs | 8.63×5.75 mm |
| 35.49 mm² | 40.69 mm² |
| 0.8ct Amethyst Oval (8.06×5.37mm) | |
| 1.2ct Diamond Oval (8.63×5.75mm) | |
| Difference: 15% (5.2 mm²) |
1.2ct Diamond (Oval, 8.63×5.75mm) has approx. 15% more face-up area than 0.8ct Amethyst (Oval, 8.06×5.37mm).
Popular comparisons:
- 0.8ct Amethyst (Oval, Violet, 8.06 x 5.37) vs. 1ct Amethyst (Round, Violet, 6.86 x 6.86)
- 0.8ct Amethyst (Oval, Violet, 8.06 x 5.37) vs. 0.5ct Amethyst (Round, Violet, 5.44 x 5.44)
- 2.5ct Amethyst (Oval, Violet, 11.78 x 7.85) vs. 2.5ct Amethyst (Round, Violet, 9.31 x 9.31)
- 0.2ct Amethyst (Oval, Purple, 5.07 x 3.38) vs. 0.3ct Amethyst (Oval, Purple, 5.81 x 3.87)
- 1ct Amethyst (Oval, Violet, 9 x 7) vs. 1ct Tourmaline (Oval, Violet, 8 x 6)
- 9.5ct Amethyst (Oval, Violet, 17 x 13) vs. 4ct Diamond (Cushion, White, 9.25 x 9.25)
- 6ct Amethyst (Oval, Violet, 15.77 x 10.51) vs. 7.5ct Ruby (Oval, Red, 14.81 x 9.87)
- 6ct Amethyst (Oval, Violet, 15.77 x 10.51) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)