Business Details
50+ Years
experience
Your Trusted Jewelry Store in Claremont, CA
Established in 1972, The Diamond Center has been a family-owned and operated jewelry store serving the Inland Valley community for over five decades. Our legacy began with Rob and Debbie Lantz, who built a reputation for exceptional craftsmanship, ethically sourced diamonds, and personalized customer service. Over the years, we expanded our expertise through strategic partnerships like Hearts on Fire Diamonds while maintaining our commitment to quality and innovation. Our team of certified IJO Master Jewelers specializes in custom designs, from initial sketches to finished pieces, ensuring every creation reflects the client's vision. We offer comprehensive services including jewelry repairs, appraisals, and corporate gifting, all backed by a strict ethical code emphasizing trust and integrity.As active community contributors, we support local organizations and educational institutions, reinforcing our dedication to both our customers and the Claremont community. Our showroom features an extensive collection of engagement rings, wedding bands, and fine jewelry, complemented by educational resources to guide informed purchasing decisions. With a focus on long-term relationships, we prioritize customer satisfaction through transparent communication and meticulous attention to detail. Our expertise in restoring antique and heirloom jewelry preserves sentimental value while maintaining structural integrity. Today, led by third-generation jeweler Ray Lantz, we continue to combine tradition with modern techniques to deliver timeless elegance and enduring quality.
Services
Custom Jewelry Design
Engagement Rings
Jewelry Repairs
Appraisals
Corporate Gifts
Gold & Diamond Buying
Jewelry Restoration
Pearl Restringing
Watch Repairs
Jewelry Education
Details
- Year established: 1972
Highlights and features
- We have over 50 years of experience in fine jewelry craftsmanship.
- Our team includes certified IJO Master Jewelers with specialized expertise.
- We offer personalized custom design services from concept to completion.
- We maintain a strict ethical code of trust and transparency.
- We actively contribute to local community organizations and education.
Associations and certifications
- Independent Jewelers Organization (IJO)
Services
Custom Jewelry Design
Our custom jewelry service transforms your vision into reality through a three-step process: sketching, 3D CAD rendering, and final setting. We work closely with clients to create unique pieces using ethically sourced materials. Ideal for engagement rings, heirloom redesigns, or commemorative jewelry, our master jewelers ensure precision and personalization in every creation.
Jewelry Appraisals
We provide detailed jewelry appraisals using advanced gemological tools to assess diamonds, gemstones, and precious metals. This service ensures accurate valuations for insurance purposes, with recommendations for re-appraisal every 3-5 years. Our certified experts evaluate craftsmanship, material quality, and market value to protect your investment.
Jewelry Restoration
Specializing in antique and heirloom jewelry, our restoration service preserves historical integrity while repairing structural issues. Techniques include prong repair, gem polishing, and period-specific detailing. We handle estate jewelry with care to maintain its original character while ensuring durability for modern wear.
Gold & Diamond Buying
We offer competitive value for gold jewelry and loose diamonds through our buyback program. Clients receive cash or store credit to upgrade their collection. Our experts evaluate purity, weight, and market conditions to maximize returns while providing transparent, no-pressure consultations for selling unwanted pieces.
Jewelry Repairs
Our full-service repairs address broken chains, loose stones, and wear-related damage for all jewelry types. Services include ring resizing, clasp replacement, and scratch removal, with free estimates available during store visits. We repair pieces purchased elsewhere, ensuring quality craftsmanship for all repair needs.
People
Rob Lantz
Master Jeweler
Founder of The Diamond Center, Rob Lantz brings over 50 years of jewelry expertise. He established the Claremont Collection and pioneered custom design services. His craftsmanship and ethical standards remain central to our operations.
Debbie Lantz
Co-Founder
Co-founder Debbie Lantz helped build The Diamond Center's reputation for excellence. She focused on customer relations and community engagement, establishing partnerships with local organizations that continue today.
Ray Lantz
Third-Generation Jeweler
Ray Lantz leads daily operations, continuing the family legacy. With expertise in modern jewelry techniques, he expanded our custom design capabilities and maintains our commitment to personalized service.
Questions
What services does The Diamond Center offer?
We provide custom jewelry design, engagement rings, appraisals, repairs, restorations, corporate gifting, and gold/diamond buybacks.
Can I schedule an appointment for jewelry repairs?
Yes, we recommend scheduling appointments for all services, including repairs, to ensure dedicated time with our experts.
Do you work with heirloom jewelry?
Yes, our restoration specialists handle antique and heirloom pieces, preserving historical details while ensuring structural integrity.
What payment methods are accepted?
We accept major credit cards, cash, and store credit for purchases and services.
How can I get a custom jewelry design started?
Contact us to schedule a consultation where we'll discuss your vision and begin the three-step design process.
Are your diamonds ethically sourced?
Yes, we prioritize ethically sourced diamonds and can provide documentation for our suppliers.
Reviews (4)
Nathan R.
Oct 03, 2021
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Ray with The Diamond Center in Claremont was professional, attentive and great to work with. Ray listened to what I was looking to purchase and educated me about what I as purchasing. I to am in the presenting profession (sales) and Ray had my best interest in mind when making a purchase of this size, thank you again Ray to you and your staff, customer for life.
Autumn LaRocque
Jun 20, 2021
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I went in a few months ago to have a gold chain link fixed and the jewelers are extremely kind and helpful, I will definitely be going here for any of my jewelry needs, even though it is far from me :)
Brittney Contreras
Oct 13, 2020
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First time in the store today! I was helped by Lily and she was AMAZING. So supportive and relatable. I love that it is a family owned store. I am a casual lady who doesnt usually buy good quality jewelry but with this wonderful experience and purchase they might influence my taste! I look forward to coming back.
Grace Tea
Jul 02, 2020
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Ray is amazing!!! My fianc had been looking at engagement rings since April 2019(?) and quickly found the one he wanted for me. He contacted Ray, since the ring was in stock at the store. They both remained in contact. Fast forward January/February 2020, my fianc asked Ray if they had the ring in a round halo (originally, he was looking at cushion halos). Ray stated he was able to get it in a decent amount of time. My fianc made a trip to the Diamond Center, which is located in the heart of downtown Claremont, and worked with Ray in customizing the engagement ring. On May 2020, my fianc
