Are they a personal jeweler?
Among other things, being a personal jeweler means they're on your side. A personal jeweler wants what's best for you, and they will do everything they can to make you happy. Personal jewelers aren't trying to sell you any old product in the display. It's their goal and mission to find you a piece of jewelry that speaks to you. A personal jeweler aims to find out what you really want, even if it takes awhile. They rarely say "no" or "I can't do that." Instead, they'll find a way to make it work, or they'll refer you to someone else who can better meet your needs.
Do they offer a wide range of services?
A good and respected jeweler offers a wide range of services. They should be able to not only solve your immediate needs but also any needs you may have in the future. A respected jeweler will have an in-house gemologist who is trained on the different properties of stones and can help you find the perfect stone for your style and budget. A good jeweler should also offer repair and resizing services, and you shouldn't have to go to a different jeweler if you need your engagement ring resized in a few years. Don't be afraid to look for jewelers who offer jewelry cleaning, watch repair, custom designed jewelry or anything else you may need in the future.
Is the jeweler knowledgeable?
When working with a jeweler, it's important that everyone who works there can answer your questions with confidence and ease. If they can't, they should be able to direct you to someone else in-house who can. Don't hesitate to walk away if a salesperson or staff member refuses to answer a question or isn't helpful. Everything you ask matters, and you deserve to have all of your questions answered.
A respected jeweler should also be able and willing to teach you all about the jewelry you're interested in buying. If you're looking for an engagement ring with your significant other, you may not be trained on the 4 Cs of a diamond or what to look for. A good jeweler should guide you through the process and provide you with the tools needed to help you see the true beauty of what you're looking to purchase.