As the long-time manager of Van Rensselaer Jewelers, Ken Heafner took over the former VRJ location in March of 2014 and opened a brand new fine jewelry store, Clark Avenue Jewelers. Housed in a beautiful boutique setting, Clark Avenue offers a huge selection of engagement rings and fine jewelry at unbeatable prices for the perfect marriage of quality and affordability.

The store name is derived from the street in Billings where Ken and his wife, Teri Johnson Heafner, grew up as next door neighbors and eventually (after much childhood bickering) became friends, fell in love, and ultimately married and had two beautiful children. After more than thirty years in both the jewelry business and as husband and wife, it’s a fitting name in that it represents their love for each other as well as their love for the Billings community and commitment to providing a genuine, local business dedicated to providing the utmost in customer care.  Finding someone you can trust is very important to jewelry buyers and Clark Avenue’s mission is to continue honoring that trust.

Purchasing a diamond or fine jewelry can seem daunting but here at CAJ you can rest assured that the owner, Ken, will personally walk you through the buying process. We make sure you go home feeling confident in the quality of the diamond or jewelry you purchased.

Ken earned a Graduate Gemologist degree from the prestigious Gemological Institute of America. As a diamond expert, he provides exceptional service and will help you select the perfect diamond and answer any questions. He insists on showing every customer their diamond under a microscope which is critical in determining quality and value. It’s also essential to CAJ’s commitment to honesty and integrity.

Stop in for a warm and welcoming atmosphere, a (likely) yapping Chihuahua in the background, a dazzling display of diamonds and jewelry, and the knowledge your are buying from Montana’s best diamond store.



As your local full-service jewelry store, Clark Avenue Jewelers offers a wide range of expert repair services on gold, silver, platinum and palladium jewelry.

  • Ring Sizing
  • Remounts
  • Shank Replacement
  • Stone Setting
  • Match and Replace Missing Gemstones
  • Prong Retipping
  • Chain Soldering
  • Clasp Replacement
  • Refurbishing
  • Rhodium Plating
  • Laser Welding
  • Pearl Strand Restringing

We want you to be completely comfortable leaving your jewelry for repair. Like a fingerprint, every diamond is different. Diamond plotting gives you peace of mind. When you bring a diamond in for repair, we will show it to you under the microscope and create a plot of the unique internal characteristics of your stone. These characteristics will be shown to you again upon picking up the piece, so you know you are taking back exactly what you left.

All repair estimates are free of charge.

All repair work is done by our certified master watchmaker and comes with a 9 month warranty on all movement repairs.

  • Professional Watch Repair and Cleaning
  • Stem and Crown Replacement
  • Dial Refinishing
  • Crystal Replacement

Our in-store services include:

  • Battery Replacement
  • Watch Band Sizing
  • Watch Band Replacement

Be sure to ask about our lifetime battery plan!

Do you have a unique, one of a kind idea or has something caught your eye on the internet? Our professional goldsmiths will combine your ideas with their expertise to create the custom-made piece of jewelry that you are dreaming of. We offer CAD imaging and wax carving designs so that you can see what your jewelry will look like before it is cast.

Adapt your jewelry

Do you have a piece of jewelry that, for some reason, you never wear? Why not turn it into something completely different? We can create a pendant from a brooch that your grandmother gave you. We can deconstruct your outdated wedding set and create a complete new design.

Remount your engagement ring

Are you tired of your yellow gold bridal set? Use the diamonds in your ring to create a beautiful NEW ring in white gold or platinum. Or, you may want to add more diamonds to your mounting or get a second wedding band for the other side of your engagement ring. We can custom design a wedding band that will fit exactly with your engagement ring mounting.

Elk tooth jewelry

One of the more popular jewelry ideas in Montana and Wyoming is customizing a piece of jewelry using an elk tooth. We have designed pendants, rings, earrings, tie tacks, cuff links and hat tacks. Each mounting is hand made to fit each individual tooth.

At Clark Avenue Jewelers, we can help you protect your investment through accurate and reliable jewelry appraisals.  There are several different kinds of  appraisals, which depend upon their intended use. The appropriate value needs to be based on the correct most common marketplace.

Jewelry Appraisal Services for:

  • Insurance Coverage
  • Replacement Value
  • Estate Distribution
  • Fair Market Value
  • Donation (Charitable Contribution)
  • Divorce Settlement (Equitable or Equal Distribution)
  • Damage or Casualty Loss
  • Curiosity or Identification

Ken Heafner, the owner of Clark Avenue Jewelers, has 40 years experience in the jewelry industry and is a Graduate Gemologist from the Gemological Institute of America, the world’s foremost authority on diamonds, colored stones and pearls.  In addition to appraisals, Ken offers stone identification, plotting and grading services.

Why is it so important to have all of your fine jewelry inspected on a regular basis?  it’s the surest way to protect against the loss of a diamond or precious stone.

Clark Avenue Jewelers is proud to offer free jewelry cleaning and inspection for all of your fine jewelry.  We recommend that you bring your jewelry in every 6 months to ensure it maintains it’s beautiful sparkle.  Enjoy a complimentary cleaning and inspection to check for loose or damaged stones, worn prongs or damage done to the mounting.

We will take your jewelry through a thorough inspection, including viewing it under a microscope to check for any problems and to make sure that all of the stones are set securely.  Then we will hand polish, ultrasonic soak and steam clean it.  No appointment is necessary.  In most cases, we’ll do it while you wait!





Financing Available! Easy application process. Affordable monthly payments.



Holiday Store Hours:

M-F: 10:00AM – 5:30PM
Sat: 10:00AM – 5:00PM
Sun: 11:00AM – 4:00PM
12/24: 10:00AM – 4:00PM
12/25: Closed
12/31 – 1/3: Closed

2564 King Ave W, Billings, MT 59102

Phone: (406) 652-7778