0.25ct Beryl (Cabochon, 4.91×3.27mm, Orange) vs 0.25ct Tourmaline (Cabochon, 4.71×3.14mm, Purple)
Quick summary: When looked from above (face-up position), 0.25ct Beryl (4.91×3.27mm, cabochon cut) appears 9% larger than 0.25ct Tourmaline (4.71×3.14mm, cabochon cut). See below how they compare side-by-side on a ring and finger.
| 0.25ct Beryl (cabochon cut) |
vs
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0.25ct Tourmaline (cabochon cut) |
|
orange |
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| 4.91×3.27 mm | 4.71×3.14 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
0.25ct Beryl Cabochon (4.91×3.27mm, Orange)
and
0.25ct Tourmaline Cabochon (4.71×3.14mm, Purple)
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, Tourmaline will face-up smaller than Beryl for a given
carat weight, because it has higher specific gravity
(3.06 vs. 2.72 - this means it's "heavier" compared to Beryl 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.
| 0.25 Ct Beryl (Cabochon) | 0.25 Ct Tourmaline (Cabochon) | |
| 4.91×3.27 mm | vs | 4.71×3.14 mm |
| 13.17 mm² | 12.13 mm² |
| 0.25ct Beryl Cabochon (4.91×3.27mm) | |
| 0.25ct Tourmaline Cabochon (4.71×3.14mm) | |
| Difference: 9% (1.04 mm²) |
0.25ct Beryl (Cabochon, 4.91×3.27mm) has approx. 9% more face-up area than 0.25ct Tourmaline (Cabochon, 4.71×3.14mm).
Popular comparisons:
- 1ct Beryl (Cabochon, Blue, 7.8 x 5.2) vs. 1ct Aquamarine (Pear, Light Bluish Green, 9.46 x 5.7)
- 15ct Beryl (Cabochon, Orange, 19.25 x 12.83) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Beryl (Cabochon, Orange, 7.8 x 5.2) vs. 1ct Tourmaline (Emerald, Violet, 6.95 x 5.15)
- 3ct Beryl (Cabochon, White, 11.25 x 7.5) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 13ct Beryl (Cabochon, Orange, 18.35 x 12.23) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 14ct Beryl (Cabochon, Orange, 18.81 x 12.54) vs. 1ct Peridot (Emerald, Yellowish Green, 6.78 x 5.02)
- 2ct Beryl (Cabochon, Orange, 9.83 x 6.55) vs. 2.27ct Sapphire (Cabochon, Light Blue, 8 x 6.1)
- 2ct Beryl (Cabochon, Orange, 9.83 x 6.55) vs. 2ct Peridot (Cabochon, Yellowish Green, 9.15 x 6.1)
- 0.05ct Beryl (Cabochon, Orange, 2.88 x 1.92) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)