The jewel thieves struck between 7am and 6pm on Wednesday, January 18. <br /> <br />The properties targeted are in in Westcraigs Road and Miller Street, Harthill. <br /> <br />Police say the residents were not at home during the break-ins. <br /> <br />Constable Craig Jeffrey, from the Housebreaking unit based at Airdrie Police Station Office, said: “During the house-breaking in Westcraigs Road, the jewellery stolen was valued at over £50,000 and is described as being very distinctive 24ct Asian gold. <br /> <br />“A quantity of jewellery including a very distinctive pocket watch with a chain and butterfly charm attached and a silver Swarovski crystals necklace with a tree pendent was stolen from the house in Miller Street. <br /> <br />"The stolen jewellery stolen from this house is believed to be worth around £5,000. <br /> <br />“Obviously these items, although worth a lot of money, had extremely high sentimental value to the owners and as such I urge anyone who has any information that could assist in tracking down the person or persons responsible for the break-ins and thefts to contact Airdrie Police via 101.” <br /> <br />Alternatively calls can be made to Crimestoppers on 0800 555 111 where anonymity can be maintained.