Roger Dery Gemstones | Custom Gemstone Jewelry

Mountz Jewelers is the premier destination for exquisite custom gemstone jewelry designed by Roger Dery. We're thrilled to offer you the opportunity to create a truly one-of-a-kind piece that will be cherished for generations.

Expert Care & Craftsmanship

Roger Dery is a master gemstone cutter and supplier who has spent over 40 years sourcing and cutting some of the world's most beautiful and rare gemstones. With his expertise and passion for the industry, Roger Dery has built a reputation as one of the most respected and sought-after gemstone suppliers in the world.

Discover Your Color

At Mountz Jewelers, we're proud to bring you a unique selection of Roger Dery gems and stunning jewelry that is simply unmatched in quality and beauty. Our expert team of jewelry designers will work with you to create a piece that perfectly embodies your unique style and personality.

Customize Your Style

Whether you're looking for a breathtaking engagement ring, a stunning pendant, or a dazzling pair of earrings, our team will guide you through the entire process, from selecting the perfect Roger Dery gems to creating a design that is truly your own.
To schedule an appointment to create your custom gemstone piece, simply fill out the form below, and one of our expert designers will be in touch shortly. We look forward to helping you create a piece that will be treasured for a lifetime.

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Roger Dery 3.32 Gram Blue Sapphire Gemstone Crystal

Cut – Uncut Crystal
Measurements – 29.00 x 11.00 x 8.00mm
Country of Origin – Sri Lanka
AGTA – None
Registry Number – 2007006 Origin – Sri Lanka
AGTA – None
Registry Number – 2007006

Price: $ 2,690.00

Roger Dery 5.32CT Iolite Classic Emerald Cut Loose Gemstone

Cut – Classic Emerald Cut
Measurements – 15.46 x 8.27 x 6.00mm
Country of Origin – Tanzania
AGTA – None
Registry Number – 2409011 Origin – Tanzania
AGTA – None
Registry Number – 2409011

Price: $ 1,830.00

Roger Dery 2.38CT Aquamarine Oval Cut Loose Gemstone

Cut – Oval Cut
Measurements – 9.75 x 8.07 x 6.00mm
Country of Origin – Madagascar
AGTA – Heat
Registry Number – 2307042 Origin – Madagascar
AGTA – Heat
Registry Number – 2307042

Price: $ 1,965.00

Roger Dery 6.22CT Rhodolite Garnet Classic Emerald Cut Loose Gemstone

Cut – Classic Emerald Cut
Measurements – 11.80 x 9.05 x 6.20mm
Country of Origin – Tanzania
AGTA – None
Registry Number – 2406027 Origin – Tanzania
AGTA – None
Registry Number – 2406027

Price: $ 2,140.00

Roger Dery 14.84CT Amethyst Signature Round Cut Loose Gemstone

Cut – Roger Dery Signature Round Cut
Measurements – 16.04 x 16.04 x 11.61mm
Country of Origin – Rwanda
AGTA – None
Registry Number – 2011002 Origin – Rwanda
AGTA – None
Registry Number – 2011002

Price: $ 1,835.00

Roger Dery 1.05CT Teal Sapphire Round Cut Loose Gemstone

Cut – Round Cut
Measurements – 5.50 x 5.50 x 4.40mm
Country of Origin – Sri Lanka
AGTA – Heat
Registry Number – 2209069 Origin – Sri Lanka
AGTA – Heat
Registry Number – 2209069

Price: $ 1,585.00

Roger Dery .71CT Emerald Round Loose Gemstone

Cut – Round
Measurements – 5.40 x 5.40 x 4.15mm
Country of Origin – Zambia
AGTA – Oil
Registry Number – 2404012 Origin – Zambia
AGTA – Oil
Registry Number – 2404012

Price: $ 1,565.00

Roger Dery 1.05CT Navy Blue Sapphire Round Loose Gemstone

Cut – Round
Measurements – 6.20 x 6.20 x 3.70mm
Country of Origin – Thailand
AGTA – Heat
Registry Number – 1607130 Origin – Thailand
AGTA – Heat
Registry Number – 1607130

Price: $ 1,735.00

Roger Dery 1.22CT Merlot Sapphire Round Cut Loose Gemstone

Cut – Round
Measurements – 6.42 x 6.42 x 4.13mm
Country of Origin – Tanzania
AGTA – None
Registry Number – 1905005 Origin – Tanzania
AGTA – None
Registry Number – 1905005

Price: $ 1,095.00