1 Carat Tourmaline Trillion (7.65×7.65mm, Violet)
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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
Tourmaline has been a very popular gemstone since antiquity. It comes in a wide variety of colors, many times with two, or even three colors at once. It got its name from the Sinhalese word "turamali", which means "stone of mixed colors".
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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Tourmaline |
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Mineral Class:
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Tourmaline |
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Shape:
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Trillion |
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Chemical Formula:
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N/a |
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Crystal Structure:
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Hexagonal |
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Hardness:
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7 - 7.5 |
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Specific Gravity
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3.1 |
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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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7.65 mm |
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Width:
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7.65 mm |
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Est. face-up size:
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36.28 mm² |
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Volume:
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64.52 mm³ |
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Length-to-width ratio:
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1 |
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Refractive Index:
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1.616 - 1.650 |
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Cleavage:
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3,2 |
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Luster:
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Vitreous |
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Birefringence:
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0.018 |
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Wearability:
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Very good |
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Care Instructions:
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No special or unusual care |
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Color:
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Birthstone:
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Tourmaline is a birthstone for the month of October |
Popular comparisons:
- 1ct Tourmaline (Trillion, Violet, 7.65 x 7.65) vs. 2.7ct Morganite (Trillion, Light Purple, 11.16 x 11.16)
- 1ct Tourmaline (Trillion, Violet, 7.65 x 7.65) vs. 1ct Diopside (Marquise, Green, 10.52 x 5.26)
- 1ct Tourmaline (Trillion, Violet, 7.65 x 7.65) vs. 1ct Morganite (Marquise, Light Purple, 11.26 x 5.63)
- 4.93ct Tourmaline (Trillion, Red, 13.02 x 13.02) vs. 5.66ct Tourmaline (Trillion, Green, 13.64 x 13.64)
- 2ct Tourmaline (Trillion, Violet, 9.64 x 9.64) vs. 6.5ct Tourmaline (Emerald, Violet, 12.97 x 9.61)
- 2.5ct Tourmaline (Trillion, Light Red, 10.39 x 10.39) vs. 1ct Sapphire (Princess, Blue, 5.37 x 5.37)
- 2ct Tourmaline (Trillion, Violet, 8.8 x 8.6) vs. 2ct Tourmaline (Trillion, Violet, 9 x 9)
- 2.7ct Tourmaline (Trillion, Violet, 10.66 x 10.66) vs. 3ct Ruby (Emerald, Red, 9 x 7)
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