5.30ct Copper Bearing Tourmaline, 7.30ctw Blue Sapphire & Multi-Colored Diamond Solid 18K White Gold Ring (Comes W/$47,000 Appraisal) - This beautiful cocktail ring was finely crafted of solid 18k white gold, and boasts a 5.30ct (approximate) genuine oval cut copper bearing (Paraiba type) tourmaline. Paraiba tourmaline is one of the rarest stones in the world, and gems of this size and quality are becoming increasingly hard to find in today's market. These gorgeous gemstones are only found in copper rich areas such as Brazil, Nigeria and Mozambique, and mining these stones is difficult and mostly done by hand. Copper Bearing "Paraiba Type" tourmaline displays a stunning, vivid blue green color due to the presence of copper, making this particular color of tourmaline one of the most sought after by gem collectors, as they appear to have a stunning neon-like glow even in low lighting conditions. The ring is also decorated with approximately 6.00ctw genuine pave set round cut blue sapphires decorating the top half of the ring, which display a vivid velvety blue color that is truly stunning. The ring is then finished with approximately 1.30ctw multi-colored diamonds, with round cut fiery white diamonds surrounding the tourmaline and yellow, white, and pink diamonds interspersed throughout the sapphires. The ring measures 18.5mm wide at the widest point. Ring size: 7.5 (WEIGHT: 11.7 grams) Please note: This piece will come with a $47,000 insurance valuation report in the winning bidder's name by a graduate appraiser.