1. Look for it on the show itself. Pay attention to the jewelry that Jeanne Cooper's character, Katherine Chancellor, is wearing in each episode. You may be able to find some of the pieces online or in stores.
2. Check out the show's website. The Young and Restless website may have a section dedicated to the fashion worn by the show's characters. This section may include information on where to find the jewelry worn by Jeanne Cooper.
3. Follow the show's social media accounts. The Young and Restless may post photos of Jeanne Cooper's jewelry on its social media accounts. This can be a great way to learn more about the pieces and where to find them.
4. Contact the show's costume department. You can also try contacting the show's costume department directly to inquire about the jewelry worn by Jeanne Cooper. The costume department may be able to provide you with more information about the pieces and where to find them.