To mark Holocaust Memorial Day, Jane Haining's jewellery is examined for a special episode of the BBC One programme Antiques Roadshow.
Deirdre McDowell, Miss Haining's niece, said: "It is emotional and truly wonderful that the BBC is making this special programme which provides us with the opportunity to tell Jane's amazing story.
"She was such a courageous woman, very determined, considerate and kind."
The item, which was recently returned to Church of Scotland offices in Edinburgh, will feature on the show alongside the former-boarding house matron's handwritten will, photographs and a copy of the final letter she composed.
Miss Haining, who grew up in Dunscore, Dumfries and Galloway, was arrested by the Nazis in April 1944 for looking after Jewish girls in Budapest, Hungary, at the Kirk-run Scottish Mission School.
Mrs McDowell went on to say: "She followed the Christian example by looking after and caring for vulnerable children. Our family is honoured and humbled by Jane's actions.
"Her story is an example to us all and must continue to be told to benefit the next generation because the world should never forget the Holocaust."
Miss Haining died at Auschwitz in southern Poland at the age of 47.
She was posthumously named as Righteous Among the Nations in Jerusalem's sacred Yad Vashem in 1997 and awarded a Hero of the Holocaust medal by the UK Government in 2010.
Rev Ian Alexander, secretary of the world mission council of the Church of Scotland, said: "Jane Haining's story is one of heroism and personal sacrifice. She was a woman who was simultaneously ordinary and extraordinary."