A jewellery thief who posed as a customer in an attempt to steal a gold bracelet worth £1,225 has been jailed. Samuel Neculai, of Cobham Street, Gravesend, went into a shop in Rochester High Street at around 11am on February 22. The 21-year-old had asked to look at the bracelet which was displayed behind a glass window and an employee gave it to Samuel to inspect. Moments later, he attempted to flee but his getaway was promptly stopped after one shop worker blocked his exit, and another locked the door. The two employees succeeded in taking the bracelet from the thief, who had pulled off the d…