19 Carat Kyanite (Pear, 23.34×14.06mm, Blue)
Color:
Actual size is set for screen
How big is a 19 carat pear-cut Kyanite?
It depends on the cut parameters and length-to-width ratio, but a typical size of a 19ct pear-cut Kyanite would be around 23.34×14.06 mm (±6%). The lw ratio of this Kyanite is 1.66. See below how big it looks on a ring and finger.
Ring:
Skin tone:
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Ring width:
3.0 mm
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Saved...
64 mm
| Your settings | |
|---|---|
Ring |
Gold |
Skin tone |
Light |
Ring diameter |
16.9 mm |
Ring width |
3.0 mm |
Finger length |
64 mm |
Finger coverage |
84 % |
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Saved...
|
|
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Ring diameter:
16.9 mm
|
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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Shape:
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Pear |
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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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19 ct |
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Gram weight:
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3.8 g (0.134 ounces) |
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Points:
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1900 pts |
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Length:
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23.34 mm |
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Width:
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14.06 mm |
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Est. face-up size:
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239.56 mm² |
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Volume:
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1032.61 mm³ |
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Length-to-width ratio:
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1.66 |
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Refractive Index:
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1.710 - 1.735 |
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Luster:
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Vitreous,Pearly |
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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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Kyanite can be found in the following colors:
    
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Birthstone:
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Kyanite is not an official birthstone of any month |
Popular comparisons:
- 0.62ct Kyanite (Pear, Blue, 7.29 x 4.39) vs. 2.87ct Aquamarine (Princess, Light Blue, 8.71 x 8.71)
- 1ct Kyanite (Pear, Blue, 8.53 x 5.14) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 1.5ct Kyanite (Pear, Blue, 9.78 x 5.89) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2ct Kyanite (Pear, Blue, 10.76 x 6.48) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2.5ct Kyanite (Pear, Blue, 11.59 x 6.98) vs. 2ct Diamond (Round, White, 8.19 x 8.19)
- 2ct Kyanite (Pear, Blue, 10.76 x 6.48) vs. 2ct Citrine (Pear, Light Orange, 12 x 7.23)
- 2.7ct Ruby (Pear, Red, 10 x 7) vs. 3ct Ruby (Emerald, Red, 9 x 7)
- 1.5ct Tourmaline (Round, Light Red, 7.45 x 7.45) vs. 1.5ct Sapphire (Round, Light Blue, 6.84 x 6.84)