Which components are you having trouble identifying? Top to bottom, I'm seeing the base stud, the five-crystal link (not 100% sure there isn't a better term for that, but I've seen findings like that called links before on some jewellery sites), a single crystal link, another fiver, another single, and the drop with a filigree bead cap.
Therese von Ludowing (Sound Horizon's Märchen)Elsewhere: Tumblr ~ ACP ~ CosplayLab
Catelyn Stark (A Song of Ice and Fire / Game of Thrones)
Elisabeth - red ballgown (Elisabeth - Takarazuka version)
Thessaly (Sandman - The Kindly Ones)