17ct Tanzanite (Oval, 20.91×13.94mm, Blue) vs 17ct Aquamarine (Oval, 22.43×14.95mm, Light Blue)
Quick summary: When looked from above (face-up position), 17ct Aquamarine (22.43×14.95mm, oval cut) appears 15% larger than 17ct Tanzanite (20.91×13.94mm, oval cut). See below how they compare side-by-side on a ring and finger.
| 17ct Tanzanite (oval cut) |
vs
|
17ct Aquamarine (oval cut) |
|
blue |
|
|
| 20.91×13.94 mm | 22.43×14.95 mm | |
| actual size | ||
|
|
|
|
|
||
Actual size is set for screen
|
Ring:
Skin tone:
Ring width: 3.0 mm
|
|
64 mm |
|
|
|||||||||||||||||
|
|||||||||||||||||||||
Actual sizes of
17ct Tanzanite Oval (20.91×13.94mm, Blue)
and
17ct Aquamarine Oval (22.43×14.95mm, Light 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, Tanzanite will face-up smaller than Aquamarine for a given
carat weight, because it has higher specific gravity
(3.35 vs. 2.72 - this means it's "heavier" compared to Aquamarine 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.
| 17 Ct Tanzanite (Oval) | 17 Ct Aquamarine (Oval) | |
| 20.91×13.94 mm | vs | 22.43×14.95 mm |
| 239.02 mm² | 274.97 mm² |
| 17ct Tanzanite Oval (20.91×13.94mm) | |
| 17ct Aquamarine Oval (22.43×14.95mm) | |
| Difference: 15% (35.95 mm²) |
17ct Aquamarine (Oval, 22.43×14.95mm) has approx. 15% more face-up area than 17ct Tanzanite (Oval, 20.91×13.94mm).
Popular comparisons:
- 1ct Tanzanite (Oval, Blue, 8.07 x 5.38) vs. 1ct Morganite (Oval, Light Purple, 8.63 x 5.75)
- 2ct Tanzanite (Oval, Blue, 10.16 x 6.77) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 2.5ct Tanzanite (Oval, Blue, 10.95 x 7.3) vs. 2ct Diamond (Oval, White, 10.23 x 6.82)
- 4.5ct Tanzanite (Oval, Blue, 12 x 10) vs. 5ct Tanzanite (Cushion, Blue, 12 x 8)
- 1ct Tanzanite (Oval, Blue, 8.07 x 5.38) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 20ct Tanzanite (Oval, Blue, 21.89 x 14.59) vs. 20.5ct Tanzanite (Oval, Blue, 22.07 x 14.71)
- 1ct Tanzanite (Oval, Blue, 8.07 x 5.38) vs. 2ct Sapphire (Oval, Blue, 9.53 x 6.35)
- 0.8ct Tanzanite (Oval, Blue, 7.49 x 4.99) vs. 1.3ct Tanzanite (Round, Blue, 6.96 x 6.96)
- 1ct Tanzanite (Oval, Blue, 8.07 x 5.38) vs. 1ct Diamond (Oval, White, 8.12 x 5.41)