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

Diamond Grade Reporting


The brilliance (cut) of a diamond influences the diamonds value and price by as much as 25%. Yet is it the least documented or understood when purchasing a diamond.

At Diamond Design Company, prior to mounting we grade each diamond's cut on a Sarin Diamension proportion grading machine. Learn more about the importance of diamond cut.

The Sarin DiaMension proportion analyzer provides the most accurate evaluation of diamond proportion measurements available today. It is used by GIA, American Gem Society (AGS) and other gemological laboratories to analyze diamond proportions.

A trained jeweler should be able to provide a detailed analysis of a diamond's cut grade using a Sarin Report to describe each angle and degree that comprises a well cut diamond.

If a merchant selling diamonds cannot provide you with a Sarin report then BUYER BEWARE!

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