I have an unnusual gold ring with pink saphires in an unusual shape. I have lost one of the stones and would really like it fixed. Have tried several places back in Oz but was told couldn't get the shape. Also I have a blue saphire and diamond ring and I would like to replace the blue saphire with a pink one. Can anyone recommend a jeweller who may be able to do this work for a reaasonable price. Any ideas on cost would be appreciated.