2.5ct Kyanite (Heart, 8.73×8.73mm, Blue) vs 2.5ct Benitoite (Heart, 8.76×8.76mm, Blue)
Quick summary: When looked from above (face-up position), 2.5ct Benitoite (8.76×8.76mm, heart cut) appears 0.7% larger than 2.5ct Kyanite (8.73×8.73mm, heart cut). See below how they compare side-by-side on a ring and finger.
| 2.5ct Kyanite (heart cut) |
vs
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2.5ct Benitoite (heart cut) |
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blue |
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| 8.73×8.73 mm | 8.76×8.76 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
2.5ct Kyanite Heart (8.73×8.73mm, Blue)
and
2.5ct Benitoite Heart (8.76×8.76mm, Blue)
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, Kyanite will face-up slightly smaller than Benitoite for a given
carat weight, because it has higher specific gravity
(3.68 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.
| 2.5 Ct Kyanite (Heart) | 2.5 Ct Benitoite (Heart) | |
| 8.73×8.73 mm | vs | 8.76×8.76 mm |
| 54.87 mm² | 55.25 mm² |
| 2.5ct Kyanite Heart (8.73×8.73mm) | |
| 2.5ct Benitoite Heart (8.76×8.76mm) | |
| Difference: 0.7% (0.38 mm²) |
2.5ct Benitoite (Heart, 8.76×8.76mm) has approx. 0.7% more face-up area than 2.5ct Kyanite (Heart, 8.73×8.73mm).
Popular comparisons:
- 2.7ct Ruby (Pear, Red, 10 x 7) vs. 3ct Ruby (Emerald, Red, 9 x 7)
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- 1ct Aquamarine (Oval, Light Blue, 8 x 6) vs. 1ct Spinel (Oval, Gray, 8 x 6)
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- 1ct Alexandrite (Round, Bluish Green, 6.14 x 6.14) vs. 1ct Emerald (Emerald, Yellowish Green, 7.28 x 5.39)
- 1ct Sapphire (Baguette, Blue, 6.93 x 4.62) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 1ct Topaz (Round, Blue, 6 x 6) vs. 0.5ct Topaz (Round, Blue, 5 x 5)
- 2ct Zircon (Round, Light Orange, 7.16 x 7.16) vs. 2ct Emerald (Emerald, Dark Green, 9.17 x 6.79)