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

Platinum Semi-Mount Rings

Select from our beautiful collection of unique semi-mounts. All custom made to perfectly match any center stone. As with all our fine quality jewelry items, we include Appraisal and our 100% Satisfaction Policy.

Learn more about our Custom Design Services. Please e-mail us at Custom Design for a personal quote on your dream ring.



.50tcw  Platinum Sapphire Three Stone Semi Mount.50tcw Platinum Three Stone Semi Mount
.50tcw Platinum Sapphire Three Stone Semi Mount

Sapphire Platinum Past, Present & Future Semi Mount$1,375.00
.50tcw Platinum Three Stone Semi Mount

.50tcw Platinum Past, Present & Future Semi Mount$1,733.00
50tcw Platinum Fancy Yellow Three Stone Semi-MountPlatinum .66tcw Pear Shape Three Stone Ring
50tcw Platinum Fancy Yellow Three Stone Semi-Mount

Fancy Yellow .50tcw Platinum Past, Present & Future Semi Mount$1,870.00
Platinum .66tcw Pear Shape Three Stone Ring

Stunning .66tcw Pear Shape Three stone Ring$2,035.00
Platinum Sapphire .80ct Three Stone Ring1.00tcw Platinum Princess<br> Cut Semi Mount
Platinum Sapphire .80ct Three Stone Ring

Pear Shape Sapphire .80tcw Platinum Past, Present & Future Semi Mount$1,815.00
1.00tcw Platinum Princess
Cut Semi Mount


1.00tcw Platinum Princess Cut Semi Mount$2,503.00
.75tcw Platinum Diamond Engagement Semi-MountDiamond Solitaires
.75tcw Platinum Diamond Engagement Semi-Mount

Channel set round brilliant platinum semi-mount$1,733.00
Diamond Solitaires

Classic and Elegant - The Solitaire Diamond
 
Anniversary Rings

Perfect Anniversary Ring

Your anniversary ring should be unique and special. Work with us to customize your ring and make it your own. Learn More

Exceptional Savings Jewelry

Exceptional Savings!!

Visit our exceptional savings center featuring some of our most popular, high quality pieces. Ready-to-ship! Shop Now