Beautiful diamond engagement / wedding set

Beautiful 14k white gold Bridal set. Recently taken in to Zales and had the stones tightened and cleaned. Like brand new again! Size 5 1/2. Tons of sparkle!! Middle diamond alone is a 1/4k. The Total Carat Weight is 3/4 to a full. Was valued at $4000. I have the receipt from Zales where the manager had to initial that the value was over $3000 just before they could send it off for repair! Asking $1800 obo. The smaller band hooks into the bigger ring. Pictures don't do it justice!