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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.
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.50tcw Platinum Sapphire Three Stone Semi Mountpad.50tcw Platinum Three Stone Semi Mount
.50tcw Platinum Sapphire Three Stone Semi Mount
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Sapphire Platinum Past, Present & Future Semi Mountpad$1,375.00		pad.50tcw Platinum Three Stone Semi Mount
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.50tcw Platinum Past, Present & Future Semi Mountpad$1,733.00
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50tcw Platinum Fancy Yellow Three Stone Semi-MountpadPlatinum .66tcw Pear Shape Three Stone Ring
50tcw Platinum Fancy Yellow Three Stone Semi-Mount
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Fancy Yellow .50tcw Platinum Past, Present & Future Semi Mountpad$1,870.00		padPlatinum .66tcw Pear Shape Three Stone Ring
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Stunning .66tcw Pear Shape Three stone Ringpad$2,035.00
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Platinum Sapphire .80ct Three Stone Ringpad1.00tcw Platinum Princess<br> Cut Semi Mount
Platinum Sapphire .80ct Three Stone Ring
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Pear Shape Sapphire .80tcw Platinum Past, Present & Future Semi Mountpad$1,815.00		pad1.00tcw Platinum Princess
Cut Semi Mount
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1.00tcw Platinum Princess Cut Semi Mountpad$2,503.00
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.75tcw Platinum Diamond Engagement Semi-MountpadDiamond Solitaires
.75tcw Platinum Diamond Engagement Semi-Mount
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Channel set round brilliant platinum semi-mountpad$1,733.00		padDiamond Solitaires
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Classic and Elegant - The Solitaire Diamondpad
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