Hunting missing piece for my mother - vintage candlestick holder

My father bought a 3 piece set, 2 candlestick holders and 1 bowl, for my mother in the early 1960's. One candlestick broke in 1970. Mom thinks it might be Fostoria, but my searches didn't find a piece that looked like this. I would like to know the pattern/style/maker so I can complete the set for her. No obvious markings on the pieces. pieces appear light blue under low light, yet light amethyst under brighter lights. She is 85, it means a lot to her. She is a collector of vintage glass and other collectibles and has never seen a matching piece in her travels. Thanks for any information to help me make this happen for her. I'm the culprit of the broken candlestick from climbing the table when I was 2!