0.31ct Diamond (Round, 4.4×4.4mm, White) vs 20.5ct Tanzanite (Oval, 22.07×14.71mm, Blue)
Quick summary: When looked from above (face-up position), 20.5ct Tanzanite (22.07×14.71mm, oval cut) appears 17.5 times larger than 0.31ct Diamond (4.4×4.4mm, round cut). See below how they compare side-by-side on a ring and finger.
| 0.31ct Diamond (round cut) |
vs
|
20.5ct Tanzanite (oval cut) |
|
white |
|
|
| 4.4×4.4 mm | 22.07×14.71 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
0.31ct Diamond Round (4.4×4.4mm, White)
and
20.5ct Tanzanite Oval (22.07×14.71mm, 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, Diamond will face-up smaller than Tanzanite for a given
carat weight, because it has higher specific gravity
(3.52 vs. 3.3 - this means it's "heavier" compared to Tanzanite 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.
| 0.31 Ct Diamond (Round) | 20.5 Ct Tanzanite (Oval) | |
| 4.4×4.4 mm | vs | 22.07×14.71 mm |
| 15.21 mm² | 266.21 mm² |
| 0.31ct Diamond Round (4.4×4.4mm) | |
| 20.5ct Tanzanite Oval (22.07×14.71mm) | |
| Difference: 1650% (251 mm²) |
20.5ct Tanzanite Oval (22.07×14.71mm) has approx. 1650% more face-up area than 0.31ct Diamond Round (4.4×4.4mm). In other words, it's 17.5x larger.
Popular comparisons:
- 0.31ct Diamond (Round, White, 4.4 x 4.4) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.31ct Diamond (Round, White, 4.4 x 4.4) vs. 0.4ct Diamond (Round, White, 4.79 x 4.79)
- 0.31ct Diamond (Round, White, 4.4 x 4.4) vs. 0.34ct Diamond (Round, White, 4.54 x 4.54)
- 0.31ct Diamond (Round, White, 4.4 x 4.4) vs. 0.72ct Diamond (Round, White, 5.83 x 5.83)
- 0.31ct Diamond (Round, White, 4.4 x 4.4) vs. 0.5ct Diamond (Round, White, 5.16 x 5.16)
- 0.31ct Diamond (Round, White, 4.4 x 4.4) vs. 0.49ct Diamond (Round, White, 5.12 x 5.12)
- 0.31ct Diamond (Round, White, 4.4 x 4.4) vs. 0.48ct Diamond (Round, White, 5.09 x 5.09)
- 0.31ct Diamond (Round, White, 4.4 x 4.4) vs. 0.8ct Diamond (Round, White, 6.03 x 6.03)
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.