Excellence in Craftsmanship

Concierge Jewelry Services

Experience the preservation of legacy with our bespoke maintenance and appraisal

services, tailored for the world’s most exquisite pieces.

Our Commitment

Complimentary

Free Appraisals

Professional GIA-certified valuation for your peace of mind and insurance requirements.

Free Cleaning

Restore the original brilliance of your jewelry with our ultrasonic and steam cleaning process.

Watch Servicing

Expert horological maintenance for luxury timepieces, including battery replacement and movement repair.

Complimentary Inspection

We offer a detailed inspection of any piece of jewelry—regardless of where it was purchased—to ensure stones are secure and settings are pristine.

Prong and setting check

Clasp security evaluation

Stone stability analysis

We Acquire Your Treasured Assets

J&J Diamond provides a secure and prestigious environment for the sale of your precious metals and legacy jewelry. We offer immediate, competitive valuations based on live market spot prices.