"Paraiba-type" TourmalineAn oval paraiba tourmaline is of the copper-bearing variety, has an unusual color of "Chivor" green, similar to the color a natural emerald gives while showing electric reflections. A lively stone of ideal size for mounting as a ring or a pendant. Weighing approximately 13.63 carats and measuring 16.44 x 13.37 x 10.08mm FootnotesAccompanied by a GGTL Laboratories Liechtenstein report numbered 22-G-8035 dated February 8, 2022 stating that the 13.63 carats oval bluish green gemstone is an elbaite tourmaline - paraiba type and that heat treatment is undeterminable. The report comments that paraiaba-type tourmalines are commonly heat treated to modify their color; generally, this treatment cannot be identified. No indications of other treatments are shown.
"Paraiba-type" TourmalineAn oval paraiba tourmaline is of the copper-bearing variety, has an unusual color of "Chivor" green, similar to the color a natural emerald gives while showing electric reflections. A lively stone of ideal size for mounting as a ring or a pendant. Weighing approximately 13.63 carats and measuring 16.44 x 13.37 x 10.08mm FootnotesAccompanied by a GGTL Laboratories Liechtenstein report numbered 22-G-8035 dated February 8, 2022 stating that the 13.63 carats oval bluish green gemstone is an elbaite tourmaline - paraiba type and that heat treatment is undeterminable. The report comments that paraiaba-type tourmalines are commonly heat treated to modify their color; generally, this treatment cannot be identified. No indications of other treatments are shown.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
