white gold gone gold?

Jenny N asked:


hi , i got married in sep last year, and purchased my wedding ring in jan 08. it’s an 18ct white gold with diamonds in, ( from chapelle jewellers) heres the problem, two months after i bought it the diamonds came loose and fell out, hoever they fixed this without quibble, when it arrived back it had the initials PAM inside it ?!?!
also since april it has changed colour and become completley gold, i understad this happens but why has my 14ct w/ gold engament ring not changed colour as i wear them both always ?
i went today she fobbed me off with the excuse that every gold is different, and she couldn’t explain the pam thingy. she refused to do anything!!