JEM Jewellers is known to be the premier jewelry boutique in Carmel, Indiana. JEM stands out in the crowd of other jewelers offering a personalized private experience. JEM Jewellers takes pride in the fact we have the power to brighten someone’s day, and we do not take that for granted. Our prices are always fair and affordable and the possibilities are endless!

At JEM Jewellers we cater our services directly to the requests of each individual client, working with them in order to make their dreams come to reality. We take the time to educate our clients about the jewelry business and explain the options that are available to them. Through personal attention and transparent knowledge, our clients directly benefit by learning all their options and being able to make the best decisions for them. Whether they want to design a custom ring, or just need to make a simple repair, we work with our clients throughout the process and stand by them each step of the way.

JEM is most proud of the fact no jewelry is sent out for repair or creation. Everything is done on site location, a rarity these days.

At JEM Jewellers sparkle is our specialty!!! If you can dream it we can make it. We are the place that makes all of your "Sparkly Dreams Come True". We are honored to have been named Indy’s Favorite Jewelry Store! We love the people of Carmel and Indy and look forward to your visit soon.


Our staff members come from varied backgrounds – from years of experience as a certified gemologist, to previous experience as owners of jewelry stores. After working together for over 30 years, we know jewelry!



Stefanie Marten and her siblings are the owners of JEM Jewellers. Look for new young innovative things to come. The next generation is taking over! Stefanie is most proud of how far JEM has come in the jewelry business and how many charities JEM is able to help each year. JEM Jewellers store was once featured on the "Oprah" show, and an article was written about her talented Mother in the Wall Street Journal. Stefanie, Christopher and Jenna are proud to have grown up in the jewelry business and are ready to accept the challenges of being more active on the Website and creating more purchasing opportunities thru all avenues of social media.









Jan Marten's mission is to provide clients a personal, educated and transparent experience in the jewelry business. Her knowledge and passion for jewelry stems from years of experience working with high-end custom designers, large carat diamond cutters, and respected industry professionals all over the world. Jan is a Graduate Gemologist and an Accredited Jewelry Professional certified by the Gemological Institute of America, the largest and most respected educational institution in the industry.

Jan grew up on the south side of Indianapolis and is from a family that always insisted upon honesty and giving back. Committed to creating a better world for all of us; Jan has volunteered her time and expertise to Assisted Living Facilities, Schools and Programs to help children in need. Continuing education is her passion no matter what edge, "we never should stop learning".

Recently JEM made the decision to scale things back, JEM now has a smaller store where they are able to give each customer a more personalized experience. It was also important to JEM that the overhead remain low to pass the savings on to their clients. Jan will tell you she loves what she does and it shows! Creating jewelry for couples and individuals is her favorite thing to do - and the most rewarding. Her clients become part of her family and vice versa, Jan is attending weddings regularly being invited by her special clients! "I have "the gift of gab," as my father always said, and consistently reminded me that "Much is expected from the person that to whom much has been given." 




William has been a jeweler for over 30 years, starting right out of high school. When asked what his favorite piece of jewelry is, he says “My favorite piece is always the next piece I’m working on.” His favorite part of the job is seeing the look on the client’s face when they open one of his hand-made creations. William is a true master of his craft and we are so grateful to be able to call him ours! William is insistent that no one ever leave JEM Jewellers with jewelry that has not been cleaned.







Check out how what a master William is! (Actual photos)



A big thank you to our additional staff, who are some of the kindest, most approachable, hard-working people I know!

  • •  Stefanie Marten – Owner
  • •  Maryan Stoffel – Manager
  • •  Cindi Knazze – Sales Manager
  • •  Emily Capshaw – Social Media Director
  • •  Christoper Marten – Operations Director
  • •  Jenna Marten – Marketing Director