5 Carat Kyanite Oval (13.31×8.87mm, Blue)
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64 mm
| Your settings | |
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Ring |
Gold |
Skin tone |
Light |
Ring diameter |
16.9 mm |
Ring width |
3.0 mm |
Finger length |
64 mm |
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Saved...
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Ring diameter:
16.9 mm
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Additional Info
Kyanite got its name from the Greek word "kyanos", which simply means "blue". Gems with intense sapphire blue color are the most valuable. One peculiarity about Kyanite is that depending on crystallographic direction, it has two different hardnesses (7 and 4.5).
Where to buy?
For certified gemstones, high-end gemstone jewelry, and birthstone jewelry, see Blue Nile
Gem Details
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Name:
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Kyanite |
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Mineral Class:
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Kyanite |
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Shape:
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Oval |
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Chemical Formula:
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Al2SiO5 |
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Crystal Structure:
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Triclinic |
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Hardness:
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4.5-7 |
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Specific Gravity
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3.68 |
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Carat weight:
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5 ct |
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Gram weight:
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1 g (0.0353 ounces) |
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Points:
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500 pts |
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Length:
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13.31 mm |
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Width:
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8.87 mm |
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Est. face-up size:
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96.81 mm² |
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Volume:
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271.74 mm³ |
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Length-to-width ratio:
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1.5 |
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Refractive Index:
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1.710 - 1.735 |
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Cleavage:
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Perfect |
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Luster:
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Vitreous,Pearly |
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Birefringence:
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0.012 - 0.033 |
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Wearability:
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Very good |
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Care Instructions:
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Should be treated gently |
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Color:
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Birthstone:
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Kyanite is not an official birthstone for any month |
Popular comparisons:
- 5ct Kyanite (Oval, Blue, 13.31 x 8.87) vs. 5ct Tanzanite (Marquise, Blue, 18 x 9)
- 5ct Kyanite (Oval, Blue, 13.31 x 8.87) vs. 5ct Tanzanite (Oval, Blue, 13.79 x 9.19)
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 1ct Tanzanite (Oval, Blue, 8.07 x 5.38)
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 1ct Tanzanite (Oval, Light Blue, 7 x 5.38)
- 1ct Kyanite (Oval, Blue, 8 x 6) vs. 1ct Kyanite (Marquise, Blue, 10 x 5)
- 1ct Kyanite (Oval, Bluish Green, 8.14 x 6.14) vs. 1ct Alexandrite (Round, Bluish Green, 6.14 x 6.14)
- 1ct Kyanite (Oval, Blue, 7.77 x 5.18) vs. 2ct Tanzanite (Oval, Blue, 10.16 x 6.77)
- 1ct Kyanite (Oval, Blue, 8.14 x 6.14) vs. 1ct Alexandrite (Round, Light Green , 6.14 x 6.14)
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