Can a channel set diamond band with a full circle of stones be resized one half size larger?
Yes it can, but the stones won’t fit tightly together. If you need this type of alteration, talk with your jeweler about a spacer addition to keep the stones set properly. This is a tiny bar of like metal that is soldered into the ring and is worn on the inside of the hand. After all, you wear the ring to show off, and a spacer bar will not show.
