GIA Certified Copper & Manganese Bearing Natural Paraiba Tourmaline Gemstone – BEYOND RARE Collector’s Top Color Specimen – The One and Only GIA Certified Paraiba Tourmaline Estate Rings Up For Auction. This stunning specimen boasts an extra large 3.22 carat “NEON” greenish blue collectors grade GIA Certified Paraiba Tourmaline set with 44 elegantly placed hand…