Natural Paraiba Tourmaline.
Weight: 0.81 ct.
Measurements: 7.00 x 5.16 x 3.27 mm.
Colour: bluish green.
Clarity: eye clean.
This copper and manganese bearing tourmaline may be called "Paraiba tourmaline" in the trade. The name "Paraiba" comes from the Brazilian locality where this gem was first mined, however today it may come from several localities.
The colour of cuprian tourmalines may be improved by heating. It is also possible for this heating process to occur naturally when the gemstone is in the earth. To determine if the heating was done by man (as a treatment) vs. heating by nature may be difficult if not impossible.
*The country of origin is based on the seller’s opinion*
Gemologist certificate no. 07191.
Internal reference: 8094.
Insured shipment will be carried out via courier service.
SHIPPING TO SICILY, CORSICA AND SARDINIA WILL HAVE A SURCHARGE OF 10 EURO.
Gemstones sold in the CG auction are sold by vetted and trustworthy sellers chosen by Catawiki; the card attached to the gemstones is for information purposes only and not for re-sale. For re-sale purposes, the gemstone must have an accredited lab certificate from our list.
- Paraiba toermalijn
- Totaal karaat gewicht
- Oorsprong zoals aangegeven op het certificaat
- Slijpsel en vorm
- No Certification
- Doorgaans behandeld
- Transparantie / helderheid
- Transparant (schoon)