Shortly after 5pm on Tuesday, June 10, a group of people are alleged to have entered the Gympie Road business in Chermside armed with hammers and metal bars and wearing masks.
The group is accused of smashing a number of glass cabinets and stealing a large amount of jewellery.
Police say the group fled in a grey Honda CR-V station wagon with the Queensland registration 495ZJW that was stolen from an Alfred Circuit address in Calamvale on June 8.
A 38-year-old man who was working at the store at the time suffered serious head and facial injuries after he was allegedly hit with a hammer during the incident.
On June 19, police recovered the Honda near the intersection of Aquatic Street and Weir Close in Berrinba.
Between July 11 and July 15, police carried out a number of search warrants on vehicles and addresses in Brisbane and Logan, which investigators will allege resulted in seizures of items linked to the robbery.
On Tuesday night, a 25-year-old Carseldine man and a 22-year-old Goodna man were stopped in a car in Spring Hill and arrested.
The 25-year-old was charged with multiple offences, including armed robbery, intending to cause grievous bodily harm, and child endangerment.
Along with the 22-year-old, a 25-year-old Goodna man, a 29-year-old Inala man, and a 20-year-old Loganlea man were also charged with multiple offences related to the alleged robbery.
They faced court yesterday.
A 16-year-old boy has also been charged with several offences including intending to cause grievous bodily harm, armed robbery, and child endangerment.
He appeared in court yesterday.
Police continue to seek a 21-year-old Mount Gravatt man, known to frequent the Logan and Inala areas, who they believe could help the ongoing investigation.
Investigations also continue into a potential link to an armed robbery in Lutwyche a month earlier, on Thursday, May 8.
