Ideally suited for anyone with an office desk and a great gift. It is fairly unusual to find rough Boulder Opal that is suitable to be made into a DOUBLE SIDED business card holder. The fact that it is double sided enhance it's appreciation by both sides of the desk; owner and customer. Both sides are mostly polished which gives it a "clean" and finished look and not out of place on any office desk. We do not import, promote or sell Synthetic or Man Made Opal, nor any non-Australian mine d Opal.On 27 July, 1993, The Australian Government proclaimed Opal as the National Gemstone of Australia! This item is in the category "Clothing, Shoes & Accessories\Men\Men's Accessories\Wallets". The seller is "shop_surfsands" and is located in this country: AU. This item can be shipped worldwide.