Adelaide Exchange. Where Gold Is Sold Adelaide Exchange. Gold and Precious Metals Traders. Very Competitive Prices Buy and Sell Jewellery at Adelaide Exchange Beautiful Selection of Engagement Rings available at Adelaide Exchange Roller ball chain available in yellow, white, rose gold or multi tone Curb link gold bracelet with padlock catch Gold and Silver bangles available at Adelaide Exchange Sovereign-set bracelet. Half-Sovereign-set bracelets also available Custom design or jewellery repairs available at Adelaide Exchange Antique diamond star burst pendant