A £1,000 reward is being offered 10 days after a bride's unique sapphire and diamond engagement ring was stolen from the church on her wedding day.

While Caroline and James Granshaw are on honeymoon their families have put up the reward in an effort to do all they can to help recover the ring stolen from Wisborough Green church porch.

Detectives have traced the ring's last known location to Highcroft Villas, Brighton, at just after 7pm on Saturday (June 7).

The ring had been placed in a black L K Bennett clutch bag with gold clasp, along with a iPhone which was on and using the 'Find my iPhone' facility police were able to track the phone's movements, showing it had been taken to Haywards Heath until around 6pm when it travelled to Brighton.

James' father Mervyn said: "We are hoping the reward, which is quite substantial because of the huge sentimental value of the ring, will encourage someone who knows something to come forward. James put a lot of effort in creating a ring that was ethically sourced and Caroline has been left heartbroken that it is gone.

"We are working tirelessly to try and locate this ring and support the police in following up every line of enquiry. The ring is a 3.08ct. royal blue sapphire with the shoulders set with diamonds. It has three marks stamped into the inside of the band: the London assay office hallmark of a lion's head, '950' indicating 95% platinum and, most uniquely, the maker's mark 'I&R' for Ingle & Rhode.

PC Mathew Willcocks said: "We want to talk to anyone who has been offered the ring, which is quite distinctive, or has any information as to its whereabouts to contact us. We have traced the phone's movements to Haywards Heath, Poynings Drive, Hove; and finally to Highcroft Villas in Brighton where it was turned off.

"Our investigations have led us to believe that a silver '53' registered Peugoet 206 has followed that route and we would appeal to anyone with information to contact us. The reward put up by the family I hope will prompt someone to come forward with valuable information that will lead to the recovery of the ring and the arrest of those responsible."

Anyone with information should contact police on 101 or email 101@sussex.pnn.police.uk or the independent charity Crimestoppers  anonymously on 0800 555 111, quoting serial 1265 7/6.

A 43-year-old man from the Brighton area has been formally questioned in relation to the theft and enquiries continue.