Lagardo Tackett tea/coffe set

I collect pieces by Lagardo Tackett and have a set which I am not sure the value of. It is not signed but it is beautiful nonetheless. It is a 17 piece tea/coffee (6 cups, 6 saucers, pot with lid, sugar with lid, creamer) set and it does have a Schmidt stamp on the bottom as well as a Kutani stamp. Quality is perfect! It is nicely hand painted in silver and blue. I also have the creamer and sugar bowl not painted which are not part of the set but are identical other than the painting. I bought this 2 years ago for $70 and would like to know what is actually worth. Thank you kindly for your assistance.