Soft Silk PJs - Christine Lingerie? Others?

Looking to buy my partner a luxury PJ set (shirt and pants). She has sensitive skin so I’m looking for a set made of silk with as soft-feeling a weave as possible. Budget is flexible but currently about $750. She loves high quality stuff and we do hand-wash our delicate garments.

Initial research shows that Christine Lingerie might be a good place to start - what are some other brands that have nice, soft silk PJs?

What weaves should I be looking for?