Custom Engagement Rings

Why Marks Jewelry Co.?

Marks Jewelry Co. is a family-operated jewelry store in the heart of Downtown Wentzville, founded by Charles Marks — a master jeweler with over 30 years of experience in the industry. Charles does all repairs himself in-house, bringing a rare level of craftsmanship and confidence to every piece he touches. The store specializes in jewelry repairs, estate buying and consulting, bullion sales, and stunning laboratory grown diamond and moissanite bridal options, all delivered with the personal care that only a true family jeweler can provide.

Engagement rings are the heart of our business and we take pride in helping craft a ring that will represent your love story and last a lifetime. We have a large selection of engagement ring styles in stock at all times and can work with you to design a fully custom engagement ring as well.

Our 3D ring builder is the best of both worlds — you get to design a fully custom ring and we can have it ready for you in just a couple of weeks at a great price, fully customized around your center stone. Come visit our Wentzville showroom to design your custom engagement ring in person or start your journey online using our cutting-edge 3D Ring Builder. Once you have a design you like, schedule an appointment so we can discuss diamond options and finalize your design.