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Suspending a heart-shaped tourmaline weighing 27.20 carats，to a circular-cut diamond surmount weighing 0.9 carat，pendant detachable，the chain further set with circular-cut diamonds weighing 94.50 carats in total，mounted in platinum，necklace approximately 43 cm long，necklace signed Cartier，no. 870107
AGL，2019，report no. 1099102，27.20 carats，natural tourmaline，Paraiba-type，Mozambique
GRS，2019，report no. GRS2019-039134，27.20 carats，natural tourmaline，greenish-blue Paraiba-type (neon) color，Mozambique
GIA，2016，report no. 6222012017，0.9 carat，E color，VS1 clarity，excellent polish and symmetry，none fluorescence

A 27.20 CARAT MOZAMBIQUE PARAIBA TOURMALINE AND DIAMOND NECKLACE， NECKLACE BY CARTIER
The item is held under the bonded status，please check the NOTICE ON AUCTION OF BONDED LOTS in this catalogue for details.

The unusual blue-green Paraiba tourmaline was first discovered in the Brazilian state of Paraiba in 1989. Now the “neon-bright ” Paraiba tourmalines are one of the most sought-after gems in the world.
These gems had an unusual vivid blue-green that had never been seen before in any gemstone. Paraiba tourmalines typically have “neon” colors that are brighter than we find in tourmalines without copper. They appeared to glow with a neon or electric-like quality，even in the rough stone. Analysis showed that this unique effect was due to the presence of copper and manganese.
This lot is one of the rarest. The diamond necklace is designed by Cartier. The 27.20 carats heart-shaped Mozambique Paraiba tourmaline has vivid color，distinctive texture，which is an extremely rare and precious treasure without doubts.