Top Service Rating - 5 Stars - Certified Merchant

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Explore the Difference

Unlike most Internet jewelers, at Diamond Design Co. each piece of jewelry is carefully designed and crafted by our in-house jewelers.

Need it wider, smaller, more stones, less stones, a different metal or precious stone, NOT A PROBLEM. Our jewelry is made-to-order-, "made by us for you".

Fine quality jewelry should come with fine quality service


Gemological Institute of America Established in 1931, the nonprofit Gemological Institute of America (GIA) is the world's foremost authority in gemology. GIA's mission is to ensure the public trust in gems and jewelry by upholding the highest standards of integrity, academics, science, and professionalism through education, research, laboratory services, and instrument development.
American Gem Society The Importance of Knowledgeable Service
Members of the American Gem Society are dedicated to providing the most knowledgeable service to their customers. Upon successful completion of prerequisite gemological training and coursework offered by the Society, members are awarded titles that designate their level of knowledge and expertise.


At Diamond Design Co. we are committed to giving back to our communities and others in need. Throughout the year we contribute a portion of our sales to various charities. We choose these charities based on our family, friends and causes close to our heart, especially for children. We share this with you so you can know that you are helping us to contribute.

"I am only one, but still I am one. I can not do everything, but I still can do something. And becasue I can not do everything, I will not refuse to do something I can do." Helen Keller

Jewelers for Children As the industry’s charity, Jewelers for Children (JFC) is generously supported by those who create and sell fine jewelry and watches. Manufacturers, retail jewelers, trade associations, watch companies and those who provide professional services to the jewelry industry unite on behalf of children.
San Francisco CASA

Over two thousand of San Francisco's children are victims of abuse and neglect and are living in foster care.

Adrift in an overburdened public social services system, these children urgently need safe and permanent homes, educational and healthcare services, and the support of a responsible and caring adult.

The SFCASA volunteer's commitment is intense, and his or her impact on the child's life is significant. SFCASA is the only agency operating in San Francisco providing court appointed volunteer advocacy and mentorship exclusively to this group of highly disadvantaged young people.

Susan G. Komen Foundation For more than 20 years, the Susan G. Komen Breast Cancer Foundation has been a global leader in the fight against breast cancer through its support of innovative research and community-based outreach programs. Working through a network of U.S. and international Affiliates and events like the Komen Race for the Cure®, the Komen Foundation is fighting to eradicate breast cancer as a life-threatening disease by funding research grants and supporting education, screening and treatment projects in communities around the world.
American Red Cross

From floods and tornadoes to wildfires and residential fires…from hurricanes that devastated entire communities throughout the southeast U.S. to a catastrophic earthquake and tsunami that roared through southern Asia and eastern Africa countries destroying lives, families, homes and livelihoods.

Because of the public’s generous support the American Red Cross has been able to respond immediately whether the need was around the corner or halfway around the world.

CAD design for test drive your ring

Test Drive Your Ring

The ultimate in jewelry buying experience. Test drive your ring puts you in the drivers seat. Your ring, your way. Learn More

Jewelry CAD Design System

Advanced Design Technology

Quality you can trust from Diamond Design Co. We make each piece to your exact specifications. See our videos. Learn More