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San Diego’s source for exquisite diamonds and expertly crafted custom jewelry since 1985.

See the difference in our stones and our service.

Start the Process

San Diego’s source for exquisite diamonds and expertly crafted custom jewelry since 1985.

See the difference in our stones and our service.

Start the Process

The Diamond Source

There is a story inside every stone we sell, one that only the most experienced jeweler can bring to life. For more than 30 years, we’ve taught our customers how to choose the perfect diamond without sacrificing quality for size or convenience. The Diamond Source is built on trust and tradition, whether you are buying online or in person.

Quality

We choose only the best stones – if it doesn’t pass our test, we don’t sell it.

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Experience

Precision craftsmanship and artistry as rare as the stones we sell.

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Service

From cleaning to repairs, a lifetime commitment to our customers.

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We are serious
about our stones.

The Diamond Source protects our customers, saving you time and money by carrying only ideal cut diamonds – stones perfectly proportioned to allow the maximum reflective light. If you’re not a jewelry expert, that’s okay. We are. We have the knowledge, experience, and commitment to service to guide you during your search for the perfect stone, and help you make the best possible selection.

Learn More About Diamonds

Make an appointment to see us.

A forever decision is one you’ll want to make in person.
Let us show you the perfect stone.

OLD TOWN SAN DIEGO:
2474 San Diego Ave, San Diego, CA 92110

What our customers say.

“Marco’s jewelry is not your run of the mill factory produced type jewelry, everything is unique and even on a cloudy day, sparkles. Plus, I’ll mention again, it is better quality and cheaper than corporate or other jewelry stores I shopped around in.”

Walter R., Escondido

“Marco and his staff helped Thomas design the perfect ring within his budget.  It is a simple 3 stone engagement ring.  But it was important to visit Marco for the quality of his diamonds.  And, boy, do they have fire!!!”

Shannon C., Denver, CO

“After searching and searching for the right Diamond, I finally found it here. Marco and the staff are very knowledgeable and patient. They always take the time to educate me and my wife on picking the right Diamond.”

Noah, N., Phoenix, AZ