Police are appealing for witnesses after jewellery was stolen from a house in Laing Terrace on Saturday night.
The theft occurred between 6.15pm and 9.15pm, when the suspect reached through an open window at the back of the property and took three jewellery boxes, which were on a dressing table.
The contents of the boxes included three gold rings of significant and sentimental value.
The first ring, which is 35-years-old and worth £1,200, is described as yellow gold, a diamond in the centre encircled in rubies and with another circle of diamonds around it.
The second ring is a long set line of emeralds with lines of diamonds down each side, and is 15-years-old and worth £400.
The third ring is an old engagement ring heirloom and is described as a marquisette set with three small diamonds.
PC David Jamieson from Police Scotland said: “We are keen to hear from anybody who recognises the description of the jewellery, as the suspect may be attempting to sell them.
“The stolen items are of great sentimental value. One of the rings was the engagement ring of the victim’s mother, and so she is particularly distressed about its theft.
“Anyone who was near Laing Terrace in Hawick on Saturday evening and saw anything suspicious, or who can help identify these rings is asked to contact police immediately.”
Those with information can contact Police Scotland on 101 or alternatively, the charity Crimestoppers anonymously on 0800 555 111.