One of my favourite jewellery designers has to be Alan Ardiff an Irish designer. What makes him stand out from the crowd, to me at least, is that you can interact with the pieces, you can make birds fly, keys lock and stars travel across the sky.
Hello Telephone (above) and Hugs and Kisses pendant (below)
The piece below 'Jumpin Fish' is interactive. To see the fish jump click here
Also considering the time and care that must go into each piece I don't think that the prices are too steep. You can buy online from his website or his work will often pop up in stores across the country.