Legacies + VitrineDesigns
As worn on Legacies S1E13 and E15 and again on S2 E10 on Emma Tig (actress Karen David Garnet Teardrop necklace. This was the same necklace also worn on The Vampire Diaries. I'm sure that TVD fans would recognise this Sarah Salvatore necklace now seen on this crossover show at the Salvatore School!
https://www.vitrinedesigns.com/products/as-seen-on-legacies-garnet-teardrop-necklace?