The three pearl strands are breathtaking, even among such a beautiful collection.
Hoping I'm not being inquisitive, Do you have your own copy of the 1904 catalogue?
For those you want to read it in detail, it has been digitalized:
The pink diamond (as well as the ring) are sheer perfection (thanks Beth!)
The rose brooch, which was displayed in Paris recently, is just beyond words. I can't resist sharing another photo.
Bouquet de la princesse Mathilde. Théodore Fester pour Mellerio dits Meller, v. 1864-65, 2495 diamants (sur 2509 à l'origine), argent et or. (Christie's New York, 12 oct. 2004 — The Al Thani Collection)