There are other threads where this has been discussed, and sometimes the motifs shrink when exposed to water. I guess with a single motif, if you want to wear it like that, it's not so costly to replace. It would be much more expensive in a 10-20 motif.
VCA advises against wearing their jewelry in the shower, swimming, etc.
https://www.vancleefarpels.com/us/en/care-and-services/jewelry-care.html
"Your Van Cleef & Arpels jewelry creation is delicate and thus requires special care and attention.
To prevent damage to your piece, we recommend avoiding exposure to fragrance, soap, chemicals or cosmetics, as these could affect its color and form. It is best to wait until fragrances and cosmetics have dried completely before wearing your jewelry.
It is important not to expose your creation to water (fresh, chlorinated or salt) or to high temperatures (such as prolonged sun exposure).
We generally recommend that you do not wear your jewelry when performing certain activities (sports, gardening, etc.) to prevent it from being knocked or from coming into contact with harmful substances."
"Derived from sea shells, the mother-of-pearl selected by Van Cleef & Arpels is remarkable for its lustrous shine and delicate, iridescent reflections. We recommend avoiding contact with water to prevent any damage to your creation. Mother-of-pearl can be delicately cleaned with a soft, dry cloth.
As mother-of-pearl is a naturally soft substance, it is susceptible to small scratches on its surface."
I never wear any fine jewelry in the shower. I wouldn't want soap scum to collect on it, even if it isn't a delicate stone.
