17 Carat Benitoite (Trillion, 19.38×19.38mm, Blue)
Color:
Actual size is set for screen
How big is a 17 carat trillion-cut Benitoite?
It depends on the cut parameters and length-to-width ratio, but a typical size of a 17ct trillion-cut Benitoite would be around 19.38×19.38 mm (±6%). Check 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 |
115 % |
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Saved...
|
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Ring diameter:
16.9 mm
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Additional Info
Benitoite is a very rare blue gem first discovered in San Benito, California (hence the name). Benitoite is California state’s official gem.
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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Benitoite |
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Shape:
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Trillion |
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Chemical Formula:
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BaTiSi3O9 |
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Crystal Structure:
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Hexagonal |
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Hardness:
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6 - 6.5 |
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Specific Gravity
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3.65 |
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Carat weight:
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17 ct |
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Gram weight:
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3.4 g (0.1199 ounces) |
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Points:
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1700 pts |
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Length:
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19.38 mm |
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Width:
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19.38 mm |
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Est. face-up size:
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232.86 mm² |
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Volume:
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931.51 mm³ |
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Length-to-width ratio:
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1 |
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Refractive Index:
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1.75-1.80 |
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Luster:
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Vitreous |
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Wearability:
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|
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Care Instructions:
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Color:
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Benitoite can be found in the following colors:
  
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Birthstone:
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Benitoite is not an official birthstone of any month |
Popular comparisons:
- 15ct Benitoite (Trillion, Blue, 17.87 x 17.87) vs. 4ct Emerald (Round, Green, 10.82 x 10.82)
- 5ct Benitoite (Trillion, Blue, 12.39 x 12.39) vs. 7ct Kyanite (Pear, Blue, 16.33 x 9.84)
- 5ct Benitoite (Trillion, Blue, 12.39 x 12.39) vs. 5ct Kyanite (Pear, Blue, 14.61 x 8.8)
- 0.6ct Benitoite (Trillion, Dark Blue, 6.11 x 6.11) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 0.43ct Benitoite (Trillion, Dark Blue, 5.47 x 5.47) vs. 1ct Emerald (Emerald, Green, 7.28 x 5.39)
- 0.32ct Benitoite (Trillion, Blue, 4.96 x 4.96) vs. 1.5ct Diamond (Round, White, 7.44 x 7.44)
- 0.1ct Benitoite (Trillion, Blue, 3.36 x 3.36) vs. 1ct Diamond (Round, White, 6.5 x 6.5)
- 7ct Benitoite (Trillion, Blue, 13.86 x 13.86) vs. 7ct Kyanite (Pear, Blue, 16.33 x 9.84)