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Certificate Tourmaline Afghanistan green 19.79ct fine Color Eyeclean Investment
About the Item
.the most beautiful among the beautiful..., a green tourmaline from Afghanistan in the color green (verdelite) with a C-axis in a green-yellow color, always special due to the particularly high light refraction and brilliance of the Afghan tourmalines, approx. 19,793 ct, approx. 21.8 x 11.50 x 9.45 mm, eye clean, color fine, overall cut very good (was ground down from 30 ct to 20 ct to make the stone eye clean, cut in Idar Oberstein), a great investment investment gemstone, with appraisal for 8,600 euros from GLA (gemmological laboratory Austria, only ever gives an instantaneous current value, which can vary significantly depending on time and demand)
About tourmaline: It is available in all price ranges, the most expensive is the Paraiba tourmaline from Brazil, followed by top gemstones from Africa and Afghanistan, which are enjoying growing popularity. Just like the Paraiba tourmaline, the other types of tourmaline will also experience an increase in price over the years, because large, flawless gemstones in top colors are rare and increasing demand is driving up carat prices. I am all the more pleased to be able to use a cooperation with experienced gemologists and dealers locally in Afghanistan to buy top stones for as long as possible. The name tourmaline comes from the Sinhalese word tura mali, which means "a mixed-colored stone." For the mineralogist, tourmalines are simply a group of silicate (borosilicate) minerals. The color nuances range from colorless, red, pink, green, yellow, blue to black. A special feature is pleochroism, the tourmaline shows up in different colors depending on the direction you look at it and the piezoelectricity and pyroelectricity, opposite crystal ends are charged differently.
For productions: We would be happy to answer any questions you may have about our offerings or custom-made products. We are creative, flexible and always have ideas to implement your idea of the desired piece of jewelry. Try us!
- Stone:
- Stone Cut:
- Weight:20 ct
- Dimensions:Width: 0.44 in (11 mm)Depth: 0.36 in (9 mm)Length: 0.87 in (22 mm)
- Style:
- Period:
- Date of Manufacture:2023
- Condition:
- Seller Location:Viena, AT
- Reference Number:1stDibs: LU2976222965612
This gemstone can be customized into an extraordinary work of art under your direction. Collaborate with the jeweler to create a one-of-a-kind piece. Simply complete the form provided, and the seller will contact you.
About the Seller
5.0
Gold Seller
Premium sellers maintaining a 4.3+ rating and 24-hour response times
Established in 2009
1stDibs seller since 2022
51 sales on 1stDibs
Typical response time: 3 hours
- ShippingRetrieving quote...Shipping from: Viena, Austria
- Return PolicyPlease be advised, certain types of customizations are not eligible for returns.
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