Hi Lorraine, I hope you find it, but if you don't remember you can make an insurance claim for the ring, don't know if the Turkish policies are the same, but valuables are covered up to a certain sum on U.K. Household Policies. As an Antiques Dealer I always tell my customers to photograph all their jewellery (and valuable items) and also, if possible keep receipts, comes in handy for claims.
Good luck
Jacqui.