THOUSANDS of pounds worth of jewellery was stolen from a gym locker in Cheltenham earlier this week.

The jewellery was in a locker in the womens changing room of LA Fitness on Tewkesbury Road in Uckington between 8.45am and 10.10am on Monday, June 16.

It is believed the thief saw the victim use a combination lock to secure her locker. When the victim left the thief opened the locker and stole three valuable rings.

The first is a three-stone diamond ring set in platinum.

The second is a seven-stone diamond eternity ring with stones set in 18 carat white gold and an 18 carat yellow gold shank.

The third is a 22 carat gold half hoop wedding ring.

A pink plated ladies watch with leather wristband was also taken.

Anyone who witnessed suspicious activity in the gym or who has seen the jewellery since the theft is urged to call police on 101, quoting incident 138 of June 17.