2.4ct Apatite (Cabochon, 9.87×6.58mm, Green) vs 8.5ct Ruby (Cabochon, 13.97×9.31mm, Red)
Quick summary: When looked from above (face-up position), 8.5ct Ruby (13.97×9.31mm, cabochon cut) appears 100% larger than 2.4ct Apatite (9.87×6.58mm, cabochon cut). See below how they compare side-by-side on a ring and finger.
| 2.4ct Apatite (cabochon cut) |
vs
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8.5ct Ruby (cabochon cut) |
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green |
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| 9.87×6.58 mm | 13.97×9.31 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
2.4ct Apatite Cabochon (9.87×6.58mm, Green)
and
8.5ct Ruby Cabochon (13.97×9.31mm, Red)
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, Ruby will face-up smaller than Apatite for a given
carat weight, because it has higher specific gravity
(4 vs. 3.2 - this means it's "heavier" compared to Apatite 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.
| 2.4 Ct Apatite (Cabochon) | 8.5 Ct Ruby (Cabochon) | |
| 9.87×6.58 mm | vs | 13.97×9.31 mm |
| 53.25 mm² | 106.65 mm² |
| 2.4ct Apatite Cabochon (9.87×6.58mm) | |
| 8.5ct Ruby Cabochon (13.97×9.31mm) | |
| Difference: 100% (53.4 mm²) |
8.5ct Ruby (Cabochon, 13.97×9.31mm) has approx. 100% more face-up area than 2.4ct Apatite (Cabochon, 9.87×6.58mm).
Popular comparisons:
- 2.4ct Apatite (Cabochon, Green, 9.87 x 6.58) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.8ct Apatite (Cabochon, Green, 6.84 x 4.56) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 3.3ct Apatite (Cabochon, Green, 10.98 x 7.32) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1.2ct Apatite (Cabochon, Green, 7.83 x 5.22) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 5ct Apatite (Cabochon, Green, 12.6 x 8.4) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2.2ct Apatite (Cabochon, Green, 9.59 x 6.39) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 2.2ct Apatite (Cabochon, Green, 9.59 x 6.39) vs. 8.5ct Ruby (Cabochon, Red, 13.97 x 9.31)
- 2.3ct Apatite (Cabochon, Green, 9.74 x 6.49) vs. 8.5ct Ruby (Cabochon, Red, 13.97 x 9.31)