Good afternoon. I'm considering resetting my family's antique, triple-diamond engagement ring into three diamond rings. It's an heirloom - three generations - but the time's come to sell (most of) it, and I'd sentimentally like the option of keeping at least one. But here's my question: Would the three pieces apart have substantially more resale value than the combined piece? Or would the cost of resetting all three into auctionable items (materials and labor, including insurance) be greater than the likely added resale? The center diamond - clear, fine quality - is 2.5 carats and the two side stones are each 2 carats apiece. Any guidance would be greatly appreciated.