SERVICE, VALUE, AND INTEGRITY SINCE 1979

Passion, adoration, and life-long relationships are our motivation; impeccable jewelry is our result. As a small business in the suburbs of Chicago, we are highly dedicated to ethical jewelry from artisans we trust. 100% Kimberly Process Certified.

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ENGAGEMENT & WEDDING
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FINE JEWELRY
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WATCHES
Rose Gold Collection Slide

Browse Loose Diamonds

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SERVICES
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CUSTOM DESIGN
Diamonds

DIAMONDS
Estate Appraisals

Whether you're interested in general assessment, insurance, or resale values, Costello Jewelry Company is the place to go.

Watch Repairs

Our in-house shop replaces batteries while you wait and also offers polishing of your watch bracelet.

Jewelry Repairs

Our in-house shop offers ring restoration on all types of metals.

Jewelry Engraving

We offer both hand engraving and machine engraving.

Visit Our Showrooms

After over 35 years, the expert jewelers at Costello Jewelry Company continues to wow customers with their next-level service and unbeatable jewelry selection at our Naperville and Glen Ellyn jewelry stores. Because of this commitment to their customers, Costello Jewelry Company has been the recipient of many "Best Of" awards, and looks forward to helping all of their beloved Chicago area customers realize their fine jewelry dreams.

Visit Us 

Unbeatable Selection of Top-Quality Bridal and Fine Fashion Jewelry