5ct Spinel (Cushion, 9.8×9.8mm, Red) vs 5ct Alexandrite (Cushion, 9.69×9.69mm, Bluish Green)
Quick summary: When looked from above (face-up position), 5ct Spinel (9.8×9.8mm, cushion cut) appears 2% larger than 5ct Alexandrite (9.69×9.69mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 5ct Spinel (cushion cut) |
vs
|
5ct Alexandrite (cushion cut) |
|
red |
|
|
| 9.8×9.8 mm | 9.69×9.69 mm | |
| actual size | ||
|
|
|
Actual size is set for screen
|
Ring:
Skin tone:
Ring width: 3.0 mm
|
|
64 mm |
|
|
|||||||||||||||||
|
|||||||||||||||||||||
Actual sizes of
5ct Spinel Cushion (9.8×9.8mm, Red)
and
5ct Alexandrite Cushion (9.69×9.69mm, 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 Spinel for a given
carat weight, because it has higher specific gravity
(3.73 vs. 3.6 - this means it's "heavier" compared to Spinel 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.
| 5 Ct Spinel (Cushion) | 5 Ct Alexandrite (Cushion) | |
| 9.8×9.8 mm | vs | 9.69×9.69 mm |
| 86.44 mm² | 84.51 mm² |
| 5ct Spinel Cushion (9.8×9.8mm) | |
| 5ct Alexandrite Cushion (9.69×9.69mm) | |
| Difference: 2% (1.93 mm²) |
5ct Spinel (Cushion, 9.8×9.8mm) has approx. 2% more face-up area than 5ct Alexandrite (Cushion, 9.69×9.69mm).
Popular comparisons:
- 5ct Spinel (Cushion, Red, 9.8 x 9.8) vs. 5ct Alexandrite (Round, Light Green , 10.49 x 10.49)
- 3ct Spinel (Cushion, Purple, 8 x 7) vs. 1.88ct Spinel (Oval, Violet, 6.44 x 8.92)
- 2.45ct Spinel (Cushion, Gray, 7.81 x 7.81) vs. 0.67ct Diamond (Round, White, 5.69 x 5.69)
- 6.05ct Spinel (Cushion, Violet, 11.07 x 11.04) vs. 6.05ct Sapphire (Cushion, Blue, 10.64 x 9.55)
- 4.33ct Spinel (Cushion, Dark Purple, 11.2 x 8.3) vs. 2.3ct Sapphire (Emerald, Blue, 8.42 x 6.24)
- 1ct Spinel (Cushion, Light Violet, 5.7 x 5.6) vs. 1.35ct Spinel (Cushion, Red, 6.8 x 6.8)
- 8.43ct Spinel (Cushion, Violet, 11.73 x 10.29) vs. 6.05ct Sapphire (Cushion, Blue, 10.64 x 9.55)
- 2.12ct Spinel (Cushion, Gray, 7.44 x 7.44) vs. 0.67ct Diamond (Round, White, 5.69 x 5.69)
- 3ct Spinel (Cushion, Red, 8 x 7) vs. 1.88ct Spinel (Oval, Red, 8.92 x 6.44)