Genuine Like New Tiffany & Co Cushion Cut Tourmaline, Diamond and Platinum Ring

I am selling a like new Tiffany & Co legacy ring, as shown in photos. Center stone is green tourmaline, 1 carat. Platinum band has several small brilliant cut diamonds (GJ color range), totaling 0.17 carats. US size 7. Official documents including valuation from Tiffany's are included, and shown in photos. Ring appraises at $5200, according to these documents. Original Tiffany's box included. Reasonable offers welcome.