Business Details
50+ Years
experience
Your Trusted Jewelry Store in Claremont, CA
The Diamond Center has been a family-owned and operated jewelry store in Claremont, California since 1972. Our legacy began with Rob and Debbie Lantz, who established a reputation for crafting high-quality jewelry and providing exceptional customer service. Over five decades, we have expanded our expertise while maintaining a commitment to ethical sourcing, innovative design, and community engagement. Our team of certified jewelers and gemologists specializes in custom creations, diamond selection, and jewelry restoration, serving clients in the Inland Valley and beyond. We partner with trusted organizations like Hearts on Fire Diamonds and the Independent Jewelers Organization (IJO) to ensure the highest standards of excellence.Our services include jewelry repairs, appraisals, corporate gifting, and educational resources to help customers make informed decisions. As active members of the Claremont community, we support local organizations and prioritize sustainability in our practices. Every piece we create or repair reflects our dedication to preserving sentimental value and exceeding client expectations. With a focus on transparency, integrity, and craftsmanship, we aim to be the trusted choice for milestones and everyday luxury.
Services
Custom Jewelry Design
Jewelry Repairs
Diamond Appraisals
Corporate Gifting
Pearl Restringing
Watch Repairs
Gold & Diamond Buying
Jewelry Restoration
Bridal Consultations
Gemstone Education
Details
- Year established: 1972
Highlights and features
- We are a family-owned business with over 50 years of local expertise.
- Our certified jewelers use advanced techniques for custom designs and repairs.
- We are an Independent Jewelers Organization (IJO) Master Jeweler member.
- We offer free repair estimates and lifetime maintenance guidance.
- Our community involvement ensures personalized, ethical service.
Associations and certifications
- IJO
What people say
Exquisite engagement rings
Expert repairs
Family-owned legacy
Personalized service
Community involvement
Services
Custom Jewelry Design
Our custom jewelry service transforms your vision into a unique masterpiece. Using 3D CAD technology and handcrafted techniques, we create engagement rings, heirlooms, and statement pieces tailored to your preferences. Clients collaborate with our master jewelers from initial sketches to final polishing, ensuring every detail reflects their story. We specialize in repurposing heirloom gems and ethically sourced materials for one-of-a-kind designs.
Jewelry Repairs
We offer comprehensive repair services for all jewelry types, including resizing, clasp replacement, and stone setting. Our skilled artisans use precision tools to fix broken chains, worn prongs, and surface scratches while preserving the piece's integrity. Free estimates are available, and we welcome items purchased elsewhere for professional restoration.
Diamond Appraisals
Our certified gemologists provide accurate appraisals for insurance, estate planning, or resale purposes. Using specialized equipment, we assess diamond quality, gemstone characteristics, and metal purity to determine fair market value. We recommend updating appraisals every 3-5 years to reflect current market conditions and ensure proper coverage.
Corporate Gifting
We create personalized corporate gifts that elevate employee recognition and client relationships. Options include engraved watches, custom pendants, and branded jewelry featuring company logos. Our team works with businesses to select meaningful, high-quality pieces that align with their brand identity and budget for milestones, holidays, or incentive programs.
Pearl Restringing
Regular restringing preserves the longevity of pearl and bead necklaces. We replace silk thread and knots to prevent breakage, recommending service every 2-5 years based on wear frequency. This process maintains the security and luster of delicate pearls while ensuring they remain safe for daily or special occasion use.
People
Rob Lantz
Master Jeweler
Rob Lantz founded The Diamond Center in 1972 and pioneered its custom design legacy. As a certified IJO Master Jeweler, he combines traditional craftsmanship with modern technology to create intricate pieces. His expertise in antique restoration and diamond selection has earned regional recognition.
Debbie Lantz
Co-Founder
Debbie Lantz co-founded The Diamond Center with Rob, establishing its community-focused values. She oversaw client relations and ethical sourcing initiatives, ensuring every piece met rigorous quality standards. Her dedication to personalized service remains central to the business's philosophy.
Ray Lantz
Jeweler
Ray Lantz continues the family tradition as a practicing jeweler at The Diamond Center. He specializes in CAD design and modern fabrication techniques while upholding the legacy of handcrafted excellence. His work bridges generational expertise with contemporary innovation.
Questions
What services does The Diamond Center offer?
We provide custom jewelry design, repairs, appraisals, corporate gifting, pearl restringing, watch repairs, and diamond/gold buying services.
Can I get a custom jewelry piece designed?
Yes! Our 3-step process includes sketching, 3D rendering, and final crafting to create bespoke pieces tailored to your vision.
Do you appraise jewelry purchased elsewhere?
Yes, our certified gemologists appraise all jewelry regardless of purchase origin for insurance or valuation purposes.
What payment methods are accepted?
We accept major credit cards, cash, and in-store financing options for purchases and services.
Are repairs guaranteed?
We stand by all repairs with a 1-year warranty covering workmanship and materials used in the process.
What are your store hours?
We're open Tuesday 10am-6pm, Wednesday 10am-4pm, Thursday-Friday 10am-6pm, Saturday 10am-4pm, and closed Sunday/Monday.
