2.5ct Amethyst (Oval, 11.78×7.85mm, Violet) vs 2.5ct Diamond (Round, 8.82×8.82mm, White)
Quick summary: When looked from above (face-up position), 2.5ct Amethyst (11.78×7.85mm, oval cut) appears 24% larger than 2.5ct Diamond (8.82×8.82mm, round cut). See below how they compare side-by-side on a ring and finger.
| 2.5ct Amethyst (oval cut) |
vs
|
2.5ct Diamond (round cut) |
|
violet |
|
|
| 11.78×7.85 mm | 8.82×8.82 mm | |
| actual size | ||
|
|
|
|
|
||
Actual size is set for screen
Change
Settings
|
Ring:
Skin tone:
Ring width: 3.0 mm
Saved...
|
|
64 mm |
|
|
||||||||||||||||
|
||||||||||||||||||||
Actual sizes of
2.5ct Amethyst Oval (11.78×7.85mm, Violet)
and
2.5ct Diamond Round (8.82×8.82mm, 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.
| 2.5 Ct Amethyst (Oval) | 2.5 Ct Diamond (Round) | |
| 11.78×7.85 mm | vs | 8.82×8.82 mm |
| 75.83 mm² | 61.1 mm² |
| 2.5ct Amethyst Oval (11.78×7.85mm) | |
| 2.5ct Diamond Round (8.82×8.82mm) | |
| Difference: 24% (14.73 mm²) |
2.5ct Amethyst Oval (11.78×7.85mm) has approx. 24% more face-up area than 2.5ct Diamond Round (8.82×8.82mm).
Popular comparisons:
- 2.5ct Amethyst (Oval, Violet, 11.78 x 7.85) vs. 2.5ct Amethyst (Round, Violet, 9.31 x 9.31)
- 2.5ct Amethyst (Oval, Violet, 11.78 x 7.85) vs. 2.5ct Amethyst (Cushion, Violet, 8.71 x 8.71)
- 2.5ct Amethyst (Oval, Violet, 11.78 x 7.85) vs. 2.5ct Diamond (Oval, Dark Violet, 11.01 x 7.34)
- 2.5ct Amethyst (Oval, Violet, 11.78 x 7.85) vs. 2.5ct Diamond (Oval, Violet, 11.01 x 7.34)
- 2.5ct Amethyst (Oval, Violet, 11.78 x 7.85) vs. 0.2ct Amethyst (Round, Violet, 4.01 x 4.01)
- 2.5ct Amethyst (Oval, Violet, 11.78 x 7.85) vs. 2.5ct Diamond (Oval, Light Violet, 11.01 x 7.34)
- 2.5ct Amethyst (Oval, Violet, 11.78 x 7.85) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2.5ct Amethyst (Oval, Violet, 11.78 x 7.85) vs. 0.7ct Tanzanite (Oval, Blue, 7.16 x 4.77)
Enter your screen size (diagonal)
My screen size is
inches
Actual size is currently adjusted to screen.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.
If your screen (phone, tablet, or monitor) is not in diagonal, then the actual size of a gem, ring and finger will not be shown correctly.