About

Mission
At Timothy Grant Jewelry, we provide fair-priced, quality jewelry with exceptional service. Our experts have years of experience in custom design and sales, and they are passionate about making each guest’s experience special and comfortable.

​Meet Our Timothy Grant Jewelry Family​

TIM SIEFERT
Owner
​Timothy Grant Jewelry is the namesake of owner, Tim. A jeweler since 1985, Tim is an award-winning jeweler and an expert with gold and platinum who specializes in the design and craftsmanship of one-of-a-kind pieces. He does not shy away from the exceptional. Quite the opposite, in fact, as Tim is especially passionate about non-symmetrical designs and those with unusual colors and textures. Tim built this company with family and precision in mind. You are in good hands with Tim by your side in creating both classic and unique designs.

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LISA SIEFERT
Owner
Lisa (who just so happens to be Tim’s wife) is Co-Owner of Timothy Grant's and shares Tim's passion for jewelry and custom design. As an artist her fit for custom design is well matched. She takes a relaxed, no pressure approach to helping guests either choose or design just the right piece. She is currently manager of the Schaumburg location while perfecting her one-woman act as the head of TGJ’s marketing, social media and administration departments as well as heading up Shane's Foundation, NFP.

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DYAN LALLEY
Senior Sales Associate/Manager (Lake Zurich)
Dyan's goal is to create a completely satisfying experience for every client. With a background in art, design, and jewelry making, Dyan feels uniquely qualified to design and realize a client's vision in metal & gemstones.  She delights in seeing the joy on a clients face when they receive their new piece made just for them!

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MIKE (ROSCOE)
Bench Jeweler (Lake Zurich & Schaumburg) 
Mike specializes in repair consultations and jewelry repair. Just like everyone at Timothy Grant Jewelry, he has a passion for what he does. Mike puts guests at ease and offers friendly customer service. Guests can rest assured that their jewelry is safe with him and will come back better than before.

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CONNIE
Sales Associate and Designer (Schaumburg) 
Connie has had held various roles working with the public.  She prides herself with offering excellent customer service.  Connie enjoys building relationships with guests and loves hearing special stories about treasured jewelry. Whether it’s helping with a treasured family heirloom or creating a new custom piece, Connie’s favorite thing is being able to witness the legacy of beautiful jewelry continue.

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HEIDI
Graduate Gemologist (Lake Zurich & Schaumburg)Heidi is our in-house graduate gemologist. She does accurate, reliable appraisals once a month while you wait at either of our Timothy Grant Jewelry locations. Give us a call to find out when Heidi is at the location convenient for you.

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DARBY
Darby, the daughter of Tim and Lisa, has taken on the responsibility of Occasional Helper at Timothy Grant Jewelry. She would love to offer her opinion if you need a little extra convincing! Her expertise is designing case displays assisting .

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SHANE
Shane, the son of Tim and Lisa. Forever 2 years old. Passed away just after his second birthday in 2011 when his dresser fell upon him. Shane's Foundation was founded in 2012 in Shane's honor, a not-for-profit, organization dedicated to child safety focusing on furniture and television tip-over prevention.

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CHARLIE and BUZZ
If you’re lucky enough to come in on a day when our dog mascots, Charlie and Buzz, are in the store, they can offer you a hand (paw) in picking out your jewelry. Their specialty specifically involves the rawhide and antler varieties.

Charities

Timothy Grant Jewelry actively raises funds for charitable foundations:

Community

Timothy Grant Jewelry participates with and are active members in community activities and associations:

Lake Zurich Chamber of Commerce
Schaumburg Chamber of Commerce
Lake Zurich High School
Barrington High School
Lake Zurich Chamber of Commerce Scholarship Fund
Schaumburg Business Association

Our History/Our Story

Believe it or not, Timothy Grant Jewelry all began because of a young newspaper delivery boy in St. Louis, and one particular house on his route. That paperboy was now-storeowner, Tim, and the house he delivered to was that of an elderly jeweler. When the jeweler passed away, young Tim offered to help his widow clean out their home. She entrusted to him a slew of jewelers’ magazines. It was those magazines that first sparked an interest of custom and fine jewelry in Tim.

As he got older (and left behind his rock star and radio personality dreams), it became apparent that Tim’s passion was in jewelry. He attended jewelry school at Gem City in Quincy, Illinois. Tim went on to an apprenticeship back home in St. Louis. He later relocated to the Chicago area and became the jeweler and manager of a family-owned shop. He was responsible for all of the goings-on, including custom design, shop work and repairs. His efforts helped that small business grow into a larger location with multiple jewelers, and he learned a great deal about owning a business in the process.

Taking with him the knowledge he had earned and the value of a family-owned business, Tim changed jobs, working as a part time jeweler for Rainbow Design Jewelers. He hoped to use his extra time to start his own company. If you know Tim, you know that he is great at seizing opportunity. In 1991, Timothy Grant Jewelry was established out of Tim’s home. He took on trade work while separately gaining personal customers. It was hugely important to Tim for his business to have a family-owned feel with the personal touches of a small business.

His hard work paid off, and in 1997, he hired two employees and took over a small independent Lake Zurich jewelry store, renaming it “Timothy Grant Jewelry”. At this point, Tim discontinued all trade work and began concentrating completely on his personal customer base. Timothy Grant Jewelry remained at this location for ten years. During that time, Tim served on the board of directors for the Lake Zurich Chamber of Commerce. Timothy Grant Jewelry would later win several Lake Zurich Chamber of Commerce awards and other jewelry awards.

In 2006, Timothy Grant Jewelers doubled its space, moving to a new Lake Zurich location. It added a new showroom, new designers and watch lines. Soon after, in 2010, Tim purchased Rainbow Design Jewelers, and thus, a second location emerged. 

The focus and energy of Timothy Grant Jewelry has never swayed from that of family. From its family-owned origin—Tim’s wife Lisa, daughter Darby, and their two dogs work at the stores—to its goal of helping other families make their occasions as special as possible, family is at the heart of the entire company. The longtime staff members have become family as well, and they are eager to meet you all! Come on in and visit the Timothy Grant Jewelry family today.