A Fine Platinum, Brazilian Paraiba Tourmaline and Diamond Ring, containing one cushion shape step cut paraiba tourmaline weighing 6.91 carats and numerous round brilliant cut diamonds weighing approximately 1.09 carats total. Stamp: PT 950 (maker's mark). Accompanied by a Gemological Institute of America tourmaline origin report number 1162828897, dated November 26,2014, stating Species: Tourmaline, Geographic Origin: Brazil, Comments: 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. 4.60 dwts. Estimate $ 60,000-80,000 The ring is an approximate size 6.25.
A Fine Platinum, Brazilian Paraiba Tourmaline and Diamond Ring, containing one cushion shape step cut paraiba tourmaline weighing 6.91 carats and numerous round brilliant cut diamonds weighing approximately 1.09 carats total. Stamp: PT 950 (maker's mark). Accompanied by a Gemological Institute of America tourmaline origin report number 1162828897, dated November 26,2014, stating Species: Tourmaline, Geographic Origin: Brazil, Comments: 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. 4.60 dwts. Estimate $ 60,000-80,000 The ring is an approximate size 6.25.
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