Rayhanur Choudhury has been jailed for theft after he was believed to have swallowed a diamond ring . A thief has been jailed after he is believed to have swallowed an £8,500 chunky diamond ring when arrested by police . Officers said they saw Rayhanur Choudhury with a silver 'glint ' in his mouth when they went to arrest him after being called to Exclusive Jewellery in Brighton . The 22-year-old was fed five or six meals a day in a police cell with no flushing toilet in a bid to get him to pass the ring , which was fully set with emerald-cut diamonds . However nothing has been found . He was convicted of theft and jailed for nine months , following a hearing at Brighton Crown Court . Police were called to the store in November last year after Choudhury started trying on rings while staff were distracted . Lilly Jordan , a shop assistant , suspected he had swapped the 18-carat white gold ring for a fake alternative . She told the court : ' I counted the rings and there were five but one seemed out of place . 'It stuck out like a sore thumb . ' Sabina Palermo , the manager of the store , said at the time : 'The missing ring is very chunky and certainly not something you would want to swallow . ' CCTV footage showed Choudhury tilt his head back during the struggle with police . PC English said : 'He opened his mouth wide and I saw briefly the distinctive glint of something inside . ' I believe I saw something silver , an object that should n't have been there . ' Choudhury , of Newhaven , East Sussex , denied the theft and the ring was never found . The ring was taken from Exclusive Jewellery in Brighton as Choudhury browsed the jewellery on display . He told the court he had explained to officers he was unwell so he could have an X-ray at hospital to prove he had not swallowed the ring . Alec Williams , prosecuting , said : 'It 's a straightforward , not particularly sophisticated con trick , a switch . ' Choudhury was also ordered to pay a £100 victim surcharge .
Rayhanur Choudhury was trying on rings in Exclusive Jewellery , Brighton . He is believed to have switched £8,500 white gold ring for cheaper version . Police called and in the struggle a 'glint ' was seen near Choudhury 's mouth . The 22-year-old is believed to have swallowed emerald cut diamond ring . He was fed up to six meals a day in police cells but failed to pass it . Choudhury was convicted of theft of the ring and jailed for nine months .