Geoffrey's Diamonds and Goldsmith

We are Open - visit our showrooms

We have two convenient locations in San Carlos and Campbell California.

Bay Area's finest selection of

ETHICALLY SOURCED AND LAB GROWN DIAMONDS

Browse through our amazing collections of Lab Grown Diamond Necklaces, Earrings, Jewelry and Loose Lab Diamonds.

All Ethically Sourced Natural Diamonds are mined without exploiting workers or the environment. Learn about our commitment to the Kimberley Process.

Lab Diamond Jewelry

Featured Designers

Book an Appointment or

Walk-ins are welcome!

Consult with one of our jewelry specialists in a safe and sterilized environment. We can provide complimentary masks and hand sanitizers for your visit.

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Customer Reviews

If you are looking for amazing jewelry, fairly priced, offered with exceptional customer service, run, don't walk to Geoffrey's. And for some extra amazing customer service, ask for Sonny and tell her that winemaker Jon recommended her!

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Jon P, Santa Rosa

Geoffrey's created a stunning custom rose gold ring for me using family diamonds previous set in a necklace. They worked with me on my vision and made suggestions and improvements to achieve a final product I love. Their service is impeccable and they go above and beyond to ensure the quality of their work endures.

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Alana B, San Mateo

Yenny was an absolute angel. I ran into the store, just before closing and she was able to secure a charm for me onto a special key ring. I have used this store for years, but not in the new location. They are still a very professional team and give excellent service!! I will continue to use them for all my needs, large or small!

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Connie E, San Carlos

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Share your story with us...

Geoffrey's Success Stories

Joel & Abbie - Our story began in high-school where we met and were sweethearts. After high-school we stayed in touch and remained friends, always being there for each other for birthdays or special events. After we both went though some unhappy relationships we rekindled our friendship and started spending more time together....

Do you have a story to share? Send us a message, we'd love to hear from you!

Joel & Abbie's Story