I am desperately seeking a small piece of rose gold tube to mount a 2.55mm diamond. None of the bullion dealers in the UK has any and the very few who did are out with no intention of stocking it again. I'd make some but am concerned that there'd be a conspicuously yellower mark due to solder colour warnings. Does anyone know a supplier or have some tube they'd sell me? I could draw it down if necessary. The client has his heart set on rose gold and CADIing such a tiny component seems excessive. Many thanks.