How do I know what size stone is going to fit into my ear stud or pendant? If the ear stud is 8mm do I get an 8mm stone? Thank you for your wonderful jewelry catalog and website, it's a blessing to me since I'm a beginner.
If the setting on your earstud measures 8mm, it should be paired with an 8mm faceted gemstone or other 8mm cabochon, depending on the setting. Some settings, such as the cups on earstuds, can take slightly larger stones than the measurement listed, however you're safe going with the same sizes on both.
Check out the following tutorials on setting stones for how to most effectively use a variety of mountings.