If ever you wish to upgrade your diamond, Joseph King offers two options to getting closer to your dream diamond. The two options on upgrading your diamond are; We will apply 100% credit of your original diamond purchase towards your new diamond priced at least 2 times the original purchase price or higher. We will buy back your diamond at 80% of the original price (exclude GST) and put the amount as credit on any diamond or diamond jewellery purchase. Should you have any questions about our Upgrade Your Diamond promotion, please contact one of our Joseph King diamond experts.