I do not think that the jewels from Pss Elizabeth are substantial unless you think about her small Faberge item. That said it still is sad when jewels leaves a Royal House. But in this case I can not see any other option than an auction that would benefit her relatives. Regarding the Count Ingolf Khokosnik tiara is it different story. This would really be a major loss to Royal House if it where to be auctioned off.