Seaching For Good Jewelry Manufacturers One interesting fact is that many very good companies are not famous while some with good but not excellent products are well known in the field. Marketing is the reason. For instance, the "designer" jewelry made of sterling with gold accents by "David Yurman" is pretty well known. In my opinion, it is overpriced. I don't care for this jewelry while others will prefer a "Yurman" piece above all others. Tastes vary. Marketing affects taste, ...