Jewelry Designed Around You
Choosing Fine Jewelry Should Feel Exciting, Not Overwhelming
Finding the right piece is deeply personal. But with endless options, conflicting information, and high-pressure sales environments, it’s easy to feel uncertain about where to begin.
You want more than something beautiful. You want a piece that reflects your story, fits your lifestyle, and feels meaningful for years to come. Whether you’re planning a proposal, celebrating a milestone, or repurposing inherited jewelry, every detail matters.
At Jonathan K. & Co., the focus is never on pushing a sale. It’s about helping you make confident, informed decisions you’ll feel good about long after you leave the showroom.
Expert Guidance with a Personal Approach
Jonathan Kozycz has spent decades helping clients across Sacramento create and discover jewelry that feels personal, timeless, and intentional. From custom engagement rings to estate treasures and heirloom redesigns, every project is approached with honesty, expertise, and care.
What began at his family’s jewelry store evolved into a lifelong passion for craftsmanship, diamond education, and one-on-one service. Today, Jonathan K. & Co. is known for building lasting relationships with clients who value quality, trust, and thoughtful design.
Clients return for the experience just as much as the jewelry itself: personalized guidance, transparent recommendations, and pieces created to be worn for generations.
Bridal Jewelry
Engagement rings and wedding bands designed to celebrate your next chapter.
Custom Design
Collaborative jewelry design tailored to your vision, style, and lifestyle.
Estate & Pre-Owned
Unique vintage and pre-owned pieces with history, craftsmanship, and character.
Fine Jewelry
Curated rings, necklaces, earrings, bracelets, and timeless everyday luxury pieces.
A Thoughtful Process
Designed Around You
Getting Started is Simple
Schedule a Consultation
No.
Share your ideas, inspiration, goals, and budget in a relaxed, one-on-one setting.
Explore Your Options
No.
Review diamonds, gemstones, settings, estate pieces, or custom concepts with expert guidance and education.
Create Something Meaningful
No.
Leave with a piece designed to celebrate your story and last for generations.
“Jonathan is a true artisan in his craft. His expertise and knowledge is evident when he is walking you through making a custom piece. Not only does he know fine jewelry well, but also diamonds and gemstones. If you are looking for a truly unique piece, want to update any heirloom jewelry, or need repairs, you will be pleased to choose Jonathan.”
- Sara
“Jonathan has such an eye for detail. He takes special care and attention to everything he does. The pieces we have bought from him will be family heirlooms. Additionally, he has repaired and serviced my engagement ring (bought prior to knowing Jonathan K & Co.). The pieces he designs are absolutely gorgeous, creative, and timeless. You can expect high quality and to be treated like a VIP when you visit Jonathan K & Co. Fine Jewelry.”
- Lisa
“I had a great experience over at Jonathan K and Co. I was in search of a chain and was recommended to check him out by a mutual friend. I was very indecisive about which direction I wanted to go with my purchase, but he was very patient and helpful throughout the entire process. He was very persistent in finding the right chain for me, and I am very thankful for that. Highly recommend and I’m already a returning customer.”
- Dennis
“Jonathan is an excellent jeweler and craftsman. Honest and easy to work with. His communication and customer service are excellent as well. We have family friends that moved out of state that still use him as their primary Jeweler.”
- Logan
Fine Jewelry Should Feel Personal
Too often, buying jewelry feels rushed, impersonal, or confusing. Jonathan K. & Co. Fine Jewelry offers a different experience: expert guidance, honest recommendations, and beautifully crafted pieces designed around your story, style, and future. Whether you're designing an engagement ring, repurposing a family heirloom, or looking to buy or sell estate jewelry, you’ll receive thoughtful service and exceptional craftsmanship every step of the way.