Is that necklace probably Ivory? My first thought was ribs but then I figured it's prob just Ivory… but it doesn't seem shiny.

https://www.townandcountrymag.com/society/tradition/a28067965/gloria-vanderbilt-children-family/?fbclid=IwAR2bPoTooCPRbmpx1Wzl96_gAFwrlkxZyTHKwt9DACLB2_HFnmbpH2b7K2s