You misunderstand my statement. I meant if the OP were to sell it directly to a person for retail he would have to find somebody it fit. Otherwise he would have to pay to have it re-sized or take a lower amount as the buyer would have to pay for the adjustment. I had a jewelry store for five years and I did many repairs and sizings for the estate and antique jewelry store next door. To get much for the ring it would have to be professionally tested and re-stamped with the karat mark and you will have to pay for that work. Sapphires cannot be in a ring to be sized down by removing a piece of metal and soldering back together. Heat will cause a color change in sapphire and many other colored gem stones. It will cost to have central stone removed to size it down. Sure, if you have a jewelry store or are a jeweler you can sell it to anybody and re-size it for them otherwise you will have to pay to have it done. The ring is small and thin, it will not re-size much larger or the metal band will get too thin. Anything can be done, just a matter of how much do you want to spend to make the sale. The ring may have been made by Tiffany and the brand is popular but it is not a spectacular Tiffany product and the diamonds are tiny. At 4mm the sapphire is also quite small and not a really valuable stone even if natural. The main stone needs to be checked by a gemologist as synthetic sapphires have been around for a hundred years and were very popular in the 1920s and 30s but don't have much value today. Yes, Tiffany and many other high end jewelers used the synthetic ruby and sapphires when they were newly invented and popular. This ring is "cute" but it was not a higher end ring when new and it is not today. Not all Tiffany products are expensive today and they weren't when the ring was made. Tiffany sold and sells a lot of lower end jewelry too.
