19ct Benitoite (Cushion, 15.23×15.23mm, Blue) vs 19ct Alexandrite (Cushion, 15.12×15.12mm, Bluish Green)
Quick summary: When looked from above (face-up position), 19ct Benitoite (15.23×15.23mm, cushion cut) appears 1% larger than 19ct Alexandrite (15.12×15.12mm, cushion cut). See below how they compare side-by-side on a ring and finger.
| 19ct Benitoite (cushion cut) |
vs
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19ct Alexandrite (cushion cut) |
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blue |
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| 15.23×15.23 mm | 15.12×15.12 mm | |
| actual size | ||
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Actual size is set for screen
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Ring:
Skin tone:
Ring width: 3.0 mm
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64 mm |
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Actual sizes of
19ct Benitoite Cushion (15.23×15.23mm, Blue)
and
19ct Alexandrite Cushion (15.12×15.12mm, 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 slightly smaller than Benitoite for a given
carat weight, because it has higher specific gravity
(3.73 vs. 3.65 - this means it's "slightly heavier" compared to Benitoite 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.
| 19 Ct Benitoite (Cushion) | 19 Ct Alexandrite (Cushion) | |
| 15.23×15.23 mm | vs | 15.12×15.12 mm |
| 208.76 mm² | 205.75 mm² |
| 19ct Benitoite Cushion (15.23×15.23mm) | |
| 19ct Alexandrite Cushion (15.12×15.12mm) | |
| Difference: 1% (3.01 mm²) |
19ct Benitoite (Cushion, 15.23×15.23mm) has approx. 1% more face-up area than 19ct Alexandrite (Cushion, 15.12×15.12mm).
Popular comparisons:
- 0.15ct Benitoite (Cushion, Dark Blue, 3.06 x 3.06) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.65ct Benitoite (Cushion, Blue, 4.99 x 4.99) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.5ct Benitoite (Cushion, Blue, 4.58 x 4.58) vs. 0.21ct Spinel (Cushion, Blue, 3.5 x 2.8)
- 0.5ct Benitoite (Cushion, Blue, 4.58 x 4.58) vs. 0.5ct Tourmaline (Cushion, Light Green , 4.83 x 4.83)
- 20ct Benitoite (Cushion, Blue, 15.65 x 15.65) vs. 8.3ct Emerald (Emerald, Green, 14.74 x 10.92)
- 0.81ct Benitoite (Cushion, Dark Blue, 5.37 x 5.37) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1.19ct Benitoite (Cushion, Dark Blue, 6.11 x 6.11) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1.19ct Benitoite (Cushion, Dark Blue, 7 x 5) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2.14ct Benitoite (Cushion, Blue, 7.43 x 7.43) vs. 2.14ct Diamond (Cushion, White, 7.51 x 7.51)