Two men have used a large rock to smash the window of an Adelaide jewellery store and steal dozens of gold and diamond rings.
The two men entered a Modbury shopping centre on Tuesday morning and at the front window of the jewellers, used a rock to smash through the window.
They then grabbed 86 rings from the display and ran to a getaway car driven by a third man.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000.