Police were called to the P้ornthep Gems gold shop on Montri Rd in Phuket Town at about 2pm yesterday.
Also responding to the call were Phuket Provincial Police Commander Pol Maj Gen Pornsak Nuannu and Phuket City Police Chief Col Teerawat Liamsuwan.
Sales staff at the shop explained that at about midday, a short white-skinned woman wearing a green dress entered the store.
The woman was wearing a long black wig, leading staff to think that she was a transgender woman. However, she was also wearing a face mask, leaving staff to guess.
The woman asked to see some gold bracelets. As the woman spent two hours looking at a selection of bracelets, the staff understood her to be a genuine customer.
The suspect asked to look at the five gold bracelets, altogether worth about B135,000, then grabbed the bracelets and ran out of the shop.
The woman was last seen heading towards the Surin Circle (also called the Clocktower Circle), the staff explained.
Police through CCTV saw that the woman had entered a black Toyota Altis, registered in Songkhla, parked near the circle.
The officers managed to track the vehicle to where it was found parked in front of Phuket Public Health Office branch on Thepkrasattri Rd in Thalang at about 4pm.
Officers led by Thalang Police Chief Col Amnart Kalong and Deputy Commander Lt Col Kritsana Jannit moved in to arrest the two suspects.
In the car was Laotian national Vone Sinthone, 27, marked on her passport as male, and her Thai male friend and Phuket native Attapon Maneesri, 35.
Officers took both suspects into custody and took them to be questioned and processed by the Investigation Division at Phuket Provincial Police Station in Phuket Town, police reported.