The necklace centring on a tanzanite weighing 90.08 carats, embraced by a pair of peacocks set with circular-cut diamonds and emerald cabochons, to a diamond-set openwork surmount, completed by a platinum neckchain set with seed pearls and collet-set diamonds, interspersed by tanzanite cabochons. Tanzanite cabochons together weighing approximately 24.30 carats. Diamonds and emeralds altogether weighing approximately 6.50 and 2.50 carats respectively. Mounted in platinum. Length approximately 86cm.
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Tanzanite is a variety of the mineral zoisite. Tiffany & Co. named the gem after Tanzania, the country in which it was discovered and promoted it with a big publicity campaign in 1968. Tanzanite then became popular almost overnight among gem professionals, famous designers and as well as gem collectors who had an eye for the unusual and beautiful stone. Almost 99% of the tanzanites are heat treated to produce a range of hues between bluish-violet to violetish-blue. Gem quality unheated tanzanite with beautiful blue colour and exceptional clarity is a rare occurrence. To be offered in this auction, Lot 46 is a rare 90.08 carat unheated tanzanite of rich deep blue colour. This is certainly an utmost desirable charm for gem connoisseurs.