1.5ct Peridot (Trillion, 8.54×8.54mm, Yellowish Green) vs 1ct Alexandrite (Trillion, 7.21×7.21mm, Bluish Green)
Quick summary: When looked from above (face-up position), 1.5ct Peridot (8.54×8.54mm, trillion cut) appears 40% larger than 1ct Alexandrite (7.21×7.21mm, trillion cut). See below how they compare side-by-side on a ring and finger.
| 1.5ct Peridot (trillion cut) |
vs
|
1ct Alexandrite (trillion cut) |
|
yellowish green |
|
|
| 8.54×8.54 mm | 7.21×7.21 mm | |
| actual size | ||
|
|
|
|
|
||
Actual size is set for screen
|
Ring:
Skin tone:
Ring width: 3.0 mm
|
|
64 mm |
|
|
|||||||||||||||||
|
|||||||||||||||||||||
Actual sizes of
1.5ct Peridot Trillion (8.54×8.54mm, Yellowish Green)
and
1ct Alexandrite Trillion (7.21×7.21mm, Bluish Green)
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, Alexandrite will face-up smaller than Peridot for a given
carat weight, because it has higher specific gravity
(3.73 vs. 3.34 - this means it's "heavier" compared to Peridot 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.
| 1.5 Ct Peridot (Trillion) | 1 Ct Alexandrite (Trillion) | |
| 8.54×8.54 mm | vs | 7.21×7.21 mm |
| 45.22 mm² | 32.23 mm² |
| 1.5ct Peridot Trillion (8.54×8.54mm) | |
| 1ct Alexandrite Trillion (7.21×7.21mm) | |
| Difference: 40% (12.99 mm²) |
1.5ct Peridot (Trillion, 8.54×8.54mm) has approx. 40% more face-up area than 1ct Alexandrite (Trillion, 7.21×7.21mm).
Popular comparisons:
- 1.5ct Peridot (Trillion, Yellowish Green, 8.54 x 8.54) vs. 1.1ct Alexandrite (Trillion, Bluish Green, 7.45 x 7.45)
- 1.5ct Peridot (Trillion, Yellowish Green, 8.54 x 8.54) vs. 3ct Peridot (Oval, Yellowish Green, 11.58 x 7.72)
- 1.5ct Peridot (Trillion, Yellowish Green, 8.54 x 8.54) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 5ct Peridot (Trillion, Yellowish Green, 12.75 x 12.75) vs. 10ct Peridot (Cushion, Yellowish Green, 14 x 15)
- 1.25ct Peridot (Trillion, Yellowish Green, 8.03 x 8.03) vs. 1.5ct Peridot (Trillion, Yellowish Green, 8.54 x 8.54)
- 0.56ct Peridot (Trillion, Yellowish Green, 5.57 x 6.78) vs. 0.46ct Peridot (Oval, Yellowish Green, 5.98 x 4.12)
- 8ct Peridot (Trillion, Yellowish Green, 14.91 x 14.91) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 0.85ct Peridot (Trillion, Yellowish Green, 7.06 x 7.06) vs. 0.59ct Sapphire (Round, Blue, 5.01 x 5.01)