What is Catholic "Gold ring mass"? What kind of liturgy it is?

Today's (12th of September) [list of feasts and saints](https://catholicsaints.info/12-september/) mentions "Gold Ring Mass", but I can not find any information on it. Google perceives this as physical quantity and not as a liturgy and the Bard suggests that this is a special kind of mass that celebrates love and whose celebration requires the priest to wear a gold ring and the readings are from Song of Songs. But such information can be hallucinations of Bard, although I have nothing more about this mass. Is there any information about such mass? Maybe the older or later Missal contains some information?