My wedding ring and eternity ring are getting quite thin, they are set with diamonds (both before I started making jewellery and both from Samuels). I want to keep the originals in the design of the new one. I wear both together,

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Question is, can anyone come up with a design that I can use both rings in a new setting as it obviously has sentimental value to me. The diamonds are channel set, I wondered whether to cut both at the end of the diamonds and put a wide band inside the two and solder it on, but not sure if the diamonds will stand the heat even with "heat stop" on them. Opinions please.....