And this set has a high value - I'm recommending the following site
http://www.replacements.com/webquote/ROABER.htm - make up a place setting, cup, saucer, dinner plate, salad plate, dessert bowl, soup bowl, and other pieces you have 12 of. Add all the prices, multiply X 12. Then your serving pieces, etc. and add this to your total. That is what your set probably should be insured for, because these are high retail replacement prices. If you were to sell your set? Well, a good rule of thumb is 50% estimated of that final total. This figure is not set in stone tho'.
What a beautiful pattern - that soft green is so right for today. An ageless pattern. Best wishes. KB