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18.50 Carat Natural Cushion Cut Bi Color Tourmaline Gemstone
- SKU
- Dimensions (mm)
- 16.100 x 13.900 x 10.400mm
- Weight (cts)
- 18.500
- Shape
- Cushion
- Type
- Faceted
- Colours
-
| Tourmaline is extremely popular among collectors and is a well-known gemstone. It is the most multicolored mineral type known, occurring in virtually every color of the spectrum. Individual stones are often multicolored and are unsurpassed in their beauty. The color of some Tourmaline can be enhanced through Heat treatment. Some greenish stones can be made deep green, some brownish-red stones can be made red, and some light pink stones can be made colorless through heating. Tourmaline has many interesting optical properties. Many green and blue specimens are strongly pleochroic. Indicolite is one of the most valuable and collectible of all elbaite Tourmaline's, with hues spanning from lighter to deep, intense blues. Cutting indicolite can be a task for even the most skilled of cutters, as it is strongly Pleochroic and appears darker when viewed down the crystal. This factor must be taken into consideration when cutting, as a loss of transparency and brilliance can occur in darker specimens. |
- SKU
- Dimensions (mm)
- 16.100 x 13.900 x 10.400 mm
- Weight (cts)
- 18.500
- Shape
- Cushion
- Type
- Faceted
- Colours
-
| Tourmaline is extremely popular among collectors and is a well-known gemstone. It is the most multicolored mineral type known, occurring in virtually every color of the spectrum. Individual stones are often multicolored and are unsurpassed in their beauty. The color of some Tourmaline can be enhanced through Heat treatment. Some greenish stones can be made deep green, some brownish-red stones can be made red, and some light pink stones can be made colorless through heating. Tourmaline has many interesting optical properties. Many green and blue specimens are strongly pleochroic. Indicolite is one of the most valuable and collectible of all elbaite Tourmaline's, with hues spanning from lighter to deep, intense blues. Cutting indicolite can be a task for even the most skilled of cutters, as it is strongly Pleochroic and appears darker when viewed down the crystal. This factor must be taken into consideration when cutting, as a loss of transparency and brilliance can occur in darker specimens. |
| Shipping provider | Shipping to Thailand | Shipping to rest of world |
|---|---|---|
| Standard Shipping - Tracked | $13.00 / 1 days | $13.00 / 21 days |
|
Thailand
Standard Shipping - Tracked is discounted to $15.00 on orders with 2 or more items
Rest of the world
Standard Shipping - Tracked is discounted to $15.00 on orders with 2 or more items
|
||
| FedEx | $35.00 / 1 days | $35.00 / 10 days |
|
Thailand
FedEx is discounted to $30.00 on orders with 2 or more items
Rest of the world
FedEx is discounted to $35.00 on orders with 2 or more items
|
||
| Express Shipping | $35.00 / 7 days | $35.00 / 7 days |
|
Thailand
Express Shipping is discounted to $35.00 on orders with 2 or more items
Rest of the world
Express Shipping is discounted to $35.00 on orders with 2 or more items
|
||
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PositiveGemstone as described. I will buy from this seller again.
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Positive
beautiful aquamarine, everything perfect. thank you
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Positive
Fantastic stone
Reserve not met
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