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We strive to exceed your expectations with the promise that we are a dealer who stands for quality, service and customer satisfaction.

Quality Diamonds: Upon every purchase, you will receive an appraisal, which guarantees the authenticity of your diamond and a guarantee of your diamond being from a conflict-free area. This includes the weight, the color, the cut and the clarity of your diamond.

Superior Service: Any maintenance of your jewelry purchased at The Diamondaire including ring sizing, re-tipping, prong repair, or stone tightening is free of charge. You will have peace of mind with NO gimmicks or warranties to keep track of or PAY EXTRA for.

Diamond Replacement: Any piece of fine diamond jewelry purchased at The Diamondaire will additionally be covered for diamond and gemstone replacement weighing 0.10ct or less, free of charge, for life. This will require NO additional warranty.

Trade-In: If you decide to trade-in a diamond purchased at The Diamondaire you will get every penny you paid for your diamond towards one of greater value. NOT DOUBLE OUR TRIPLE, just MORE. This applies to loose stones, diamond stud earrings, earring jackets, and tennis bracelets.

We do this because we work very hard to hand select and cherry pick good quality diamonds that hold their value. So we are happy to see them come back.  

CAD'S (Computer Aided Design)

It is $500 down to start a custom design. After the design approval we apply the $500 towards diamonds, labor and materials. Designs take time to ensure you get what you want. In most cases we work on a design until approval. If you change your mind midway through the process we will refund you half of the $500 due to time invested in creating the CAD.

A message for Diamond-Mart customers: Although The Diamondaire is not obligated to honor service warranties and trade-ins previously covered under Diamond-Mart, we very much want you to come in and share in your future celebrations with The Diamondaire. So we will strive to accommodate Diamond-Mart customers in every way possible! In fact, we offer private appointments during the week from 6PM – 7PM for instances in which regular store hours are not convenient, such as for our out of town customers. As a former customer of Diamond-Mart, you have the peace of mind of knowing that all labor covered previously under the St. Charles and Naperville Diamond-Mart locations will now be honored at The Diamondaire! All polishing, sizing and prong repair will still be covered for the life of your jewelry. The Diamondaire will also give you 100% credit of what was paid at Diamond-Mart, toward a purchase of greater value. This applies to loose stones, diamond stud earrings, and tennis bracelets.