Natural OPAL with IGI Certified. Perfect investment Stone . IGI report number : 623442729 Species : Natural Opal Shape : Oval Cutting Style : Cabochon Weight : 11.63 Ct Size : 22.60 x 16.68 x 6.91 mm Treatment: Not specified in the report Color : Grey Transparency : Semi - Transparent ATTENTION - COMBINED SHIPPING if you win more than one item in different auctions and you wish to combine shipping, please follow the directions : - Pay first item; - send us a direct message requesting for combine shipping, specify lot numbers so we can eliminate shipping costs; - After we eliminate shipping costs, we will sent you message and you can proceed with payment; RETURNS & REFUNDS Clients are responsible for the costs of returning the items back to our address in Portugal. All returns & refunds should be approved by Catawiki. Please check our ''no reserve auctions'' and follow us for amazing deals. Thank you for your support. Worldwide Shipping from Portugal. Usually we use FedEx , in some cases we may ship with DHL Express.Our shipment is fully insured and usually shipped every Monday or Thursday, within 3 days after customer payment. We are not responsible for custom taxes or other additional tax payments in your country. All photos are magnifications, taken with a macro lens with the proper exposure, and are meant to honestly and correctly show any imperfections in the stone. Needless to say, these are much less visible to the naked eye. Please examine the photos carefully before biding.