That's a concern for me, TGG...carnelian seems to show EVERY. Bit of dirt so I find myself polishing it with the cloth almost every day....the large Frivole, too.
Try not to stress out too much. Just this week I noticed that my mop appeared a bit dingy so I swished it around in soapy water, gently scrubbed each motif with an old toothbrush and then carefully dried/ polished each clover.
Good as new!
I really don't worry about occasional cleaning. Also, nobody is ever going to notice every speck of dust like you will. They will be too distracted by your gorgeous necklace 😉