This certainly does look Haskell in-style. Is there any reason to suppose that Chinese manufacturers copied her look? Or that her look was a copy of Chinese export wares?

I bought two Haskell necklaces explicitly to take them apart to harvest the cloisonné beads. I sort of regret that now. But I eventually traded two of the three beads I acquired to a mutual friend of ours anyway. And he certainly has few qualms about cannibalizing a Haskell necklace for the more-desirable beads. (Having done this many times.) So it's not-unheard-of practice.

I have made the assumption that many of Haskell's metal findings are European rather than Asian. Do you think some are Asian (Chinese)? I'm referring to the stamped filigree elements that are typical of her work.

I would be happy to see other specimens you have documented.

JDA.

My current hypothesis is that someone in China made charm necklaces featuring Chinese stones, cinnabar, cloisonne and silver filigree in the style used for Chinese necklaces but adapted for foreign tourists. [see blog post link - http://www.beadiste.com/2015/12/puzzling-evidence-deco-chinese-charm.html]

Perhaps some of these foreign tourists - Miriam Haskell, for a prime example -
bought a supply of similar Chinese components, and made a raft of necklaces, bracelets, and brooches using them.

Helen Burton evidently made a trip to Rhode Island in the late 1930s (will have to re-find this source) and sold a bunch of things. Maybe whatever the East Coast costume jewelry workshop responsible for this jewelry - if it was indeed a workshop there instead of China or Europe - stocked up from her?

And when WWII intervened to cut supply lines to Asia, substituted wood and "Bakelite" and glass components to continue this "Chinese charms" look.

She did put jewelry together.

I'll go back once more to Mr. Lo, who is one of the
reasons why so many of us admire the Chinese race. With his help
I've had the fun of doing a bit of creative work. One day he
brought me hundreds of old white jade Manchu earrings and I made
15 chokers of distinction, hanging them on a woven silver chain and
producing a bit of jewelry of which some of you would heartily
approve. Another day he found a collection of old blue enamel
plaques - all sizes and shapes. I made belts, buttons and pins
which should appeal to those who love the touch of blue in
unusual jewelry.

And she was very well-connected.

Follow the link in the first paragraph to the PDF bio of Helen Burton written by Don Menzies.

http://www.beadiste.com/2013/11/puzzling-evidence-helen-burton.html