Kas A Designs

308 West Dunklin

Jefferson City, MO 65101

One of the Largest Collections of Colored Gemstones in the Country.

Directly imported from mines all over the world.

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Ethics, Education, and Experience

Gemologists, Designers, Master Jeweler, and experienced sales staff available to educate and assist you. Full Service with restorations and appraisals.

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Over 500 Engagement Rings in Stock

We’ll help you choose from our selection or create a Kas A Original. Our diamonds sparkle from across the room.  Style as unique as your love.

Browse the Collection

International Award Winning Jewelry Designer

At your service to create the custom jewelry of your dreams. Use your gold, remount your diamonds or choose from ours!

View Custom Designs

Kas A Designs

308 West Dunklin

Jefferson City, MO 65101

One of the Largest Collections of Colored Gemstones in the Country.

Directly imported from mines all over the world.

View the Collection

Ethics, Education, and Experience

Gemologists, Designers, Master Jeweler, and experienced sales staff available to educate and assist you. Full Service with restorations and appraisals.

Learn More

Over 500 Engagement Rings in Stock

We’ll help you choose from our selection or create a Kas A Original. Our diamonds sparkle from across the room.  Style as unique as your love.

Browse the Collection

International Award Winning Jewelry Designer

At your service to create the custom jewelry of your dreams. Use your gold, remount your diamonds or choose from ours!

View Custom Designs

Voted Best of Jefferson City 2012-2014!

city's best ribbon

Engagement & Wedding Jewelry

When you’ve found the one, you want her to have the perfect ring. With over 500 engagement rings in-stock and a master jewelry designer on-site you’re sure to find what you’re looking for at Kas A Designs promptly.

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K Jacquot

Exclusive Designs from our own Kas Jacquot. Joie de Vivre speaks to Kas’s French lineage and Synchroncity symbolizes love divine. Both lines showcase Kas’s talent and style with grace!

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Tell Your Story with Custom Jewelry

Let Kas use her passion for custom design to help you tell your unique story in jewelry. From a custom engagement ring that perfectly captures your love to a one-of-a-kind pendant to mark and important milestone in your life, allow us to make your custom jewelry vision a reality.

View Our Custom Jewelry Gallery

Referral Bonus

Do you have a friend that would be interested in one of our designs? For each referral to our store, you can earn yourself $50 towards your next purchase!


Learn More Here!