Opal Museum BOOK
If you have a ring close at hand which fits then we recommend downloading and then printing this Chart. You will be able place your ring on the printed page to see which size is your size.
This is a page which you print out and then use scissors to cut out a measuring tool.
© Welcorp PTY LTD, EST "28/01/1988". Trading as JG Jewellers, And the Brisbane Opal Museum.