1 Carat Kyanite Marquise (10×5mm, Blue)
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Ring width:
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64 mm
| Your settings | |
|---|---|
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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Marquise |
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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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1 ct |
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Gram weight:
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0.2 g (0.0071 ounces) |
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Points:
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100 pts |
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Length:
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10 mm |
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Width:
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5 mm |
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Est. face-up size:
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35.5 mm² |
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Volume:
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54.35 mm³ |
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Length-to-width ratio:
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2 |
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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 (Marquise, Blue, 17.36 x 8.68) vs. 5ct Tanzanite (Marquise, Blue, 18 x 9)
- 2ct Kyanite (Marquise, Blue, 12.78 x 6.39) vs. 5ct Ruby (Round, Red, 10.22 x 10.22)
- 10ct Kyanite (Marquise, Dark Bluish Green, 21.86 x 10.93) vs. 10ct Emerald (Marquise, Green, 24.24 x 12.12)
- 1ct Kyanite (Marquise, Blue, 10.14 x 5.07) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1.5ct Kyanite (Marquise, Blue, 11.62 x 5.81) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2ct Kyanite (Marquise, Blue, 12.78 x 6.39) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2.5ct Kyanite (Marquise, Blue, 13.78 x 6.89) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2.7ct Ruby (Pear, Red, 10 x 7) vs. 3ct Ruby (Emerald, Red, 9 x 7)
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