Mama Bijoux Atelier · Costa Mesa
Custom Design
A piece made for the story you're telling. Designed alongside Katie, from first sketch to final reveal.
Custom jewelry design is the heart of Mama Bijoux. Before we were a Costa Mesa storefront, we were a custom jewelry atelier, and custom design remains the core of everything we build. Katie Miller is a third generation jeweler, trained in a family of goldsmiths and taught to treat every custom engagement ring, custom necklace, and custom bracelet as a piece meant to last for generations. If you searched for custom jewelry design near me, custom engagement rings in Costa Mesa, or a jeweler near Newport Beach, this is where that search should lead. Our custom design process is built for clients across Costa Mesa, Newport Beach, Irvine, and greater Orange County who want handmade jewelry that cannot be found anywhere else, from custom diamond engagement rings and custom wedding bands to personalized birthstone jewelry, name necklaces, and one of a kind statement pieces. Every custom piece is handcrafted in our Costa Mesa atelier in 14k yellow gold, using ethically sourced diamonds and natural gemstones selected stone by stone. Whether you are designing a custom engagement ring from scratch, building a meaningful gift, or reimagining heirloom stones into new custom jewelry, Katie works directly with you from first sketch to final polish. This is custom fine jewelry made the way it used to be made, by hand, by a jeweler who knows your name.
How It Works
The Custom Process
I
Tell Us Your Vision
Fill out an interest form letting us know what you'd like to do. Tell us about your vision and send us any inspiration photos you might have. Once we get this, we'll look over your project and reach out to set up an in-person appointment to talk in more detail.
II
The Design Appointment
You'll sit down with Katie and talk through your vision. She will work collaboratively with you to come up with a design that you love and fits your budget. If this is a rework project, be sure to bring the pieces we'll be working with.
III
Deposit and 3D Design
Love your design and ready to go? Provide a deposit, approximately half of the total project cost, and we'll get started. Katie will keep you updated every step of the way, provide 3D images for approval, and make sure your new jewelry turns out just as you envisioned it.
IV
The Reveal
We'll reach out as soon as your custom project is complete. Pay the remaining balance and enjoy your new heirloom piece for years to come.
Recent Custom Work
View the Full Gallery
Princess Cut Diamond Halo Engagement Ring
Three Name Solid Gold Necklace
Double Diamond Flower Bangle
Pear Opal and Diamond Petals Ring
Blue Sapphire Saucer Pendant Necklace
Why Choose Mama Bijoux
Choosing custom jewelry is about more than creating something beautiful. It's about designing a piece that reflects your story, your style, and the moments that matter most.
Located in Costa Mesa, California, Mama Bijoux offers a personalized, one on one design experience from concept to completion. Led by founder and designer Katie Miller, a third generation jeweler, our team combines generations of expertise with a fresh, modern approach to fine jewelry. Whether you're creating an engagement ring, redesigning a cherished heirloom, or bringing a custom idea to life, we work closely with you to create a piece that's uniquely yours.
We specialize in solid 14k gold, natural diamonds, vibrant gemstones, and heirloom redesigns, combining expert craftsmanship with thoughtful design. Every custom project includes detailed CAD rendering, allowing you to see and refine your design before it goes into production.
Every Mama Bijoux piece is handcrafted with intention and made to be worn every day, treasured for generations, and backed by complimentary cleanings and inspections to help preserve its beauty for years to come.
Common Questions
How Much Does Custom Cost?
All custom projects will differ depending on design direction. We will work with you to get you your dream piece within your budget. All custom orders are final sale. A 50% deposit is required to confirm production. Any monies used in the design process will be forfeited should the customer wish to cancel an order already in process. Due to the custom nature of every piece, returns or exchanges are not accepted. However, we are a small business whose goal is for you to be 100% happy with your jewelry. If you are not satisfied with the outcome of a custom piece, we will make every effort to remake or fix at a discounted rate. Price estimates are estimates only, and final cost will be determined by gold and diamond price at the time of casting. Gold and diamond prices fluctuate daily.
How Long Does the Custom Process Take?
Depending on your project, you can expect the custom timeline to be about 4 to 6 weeks.
I Have Jewelry I Want to Redesign. Can I Use Those Stones?
Yes. We love working with existing jewelry and transforming it into a piece that feels authentic to you. Please bring any pieces you are interested in reworking to your custom appointment.
Can I Bring My Own Stone?
Yes. We can set any stone for you. Bring in your own stone and we will design something custom around it, built entirely to your vision.
How Will I Know What My Custom Piece Will Look Like Before It Is Finished?
Tell us your vision and we will sit down and land on your dream design. During the custom process, we can create and send you a 3D rendering of your piece so you can see exactly what it will look like once it's finished.
I Don't Live Locally. Can I Still Create a Custom Piece?
Absolutely. We work with clients all over the world. Our custom design process is seamless virtually. We'll connect through video consultations, share updates, and ship your finished piece safely to you, wherever you may be.
Do You Offer Engraving?
Yes. We offer engraving on our pieces for a $35 fee. Whether it's initials, a date, or a meaningful word, it's a beautiful way to add a personal touch.
Begin Your Piece
Tell us a little about what you have in mind. Katie will look it over and reach out to set up your consultation.
Fill Out the Interest FormHave old jewelry you want to redesign? Click here for heirloom reworks.







