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Service, Value, and Integrity since 1979

Diamond Buying Services

Diamond Buying Services at Costello Jewelry Company

Already known for their commitment to fine jewelry service, selection, and quality, Costello Jewelry Company is thrilled to also offer comprehensive diamond buying services today in their Naperville and Glen Ellyn showrooms. Now accepting stones of all shapes and sizes, the skilled diamond buying staff at Costello Jewelry Company utilize the latest in jewelry technologies to ensure their clients get the most accurate appraisals and up-to-date values.

Completed quickly and entirely on-site, selling your unwanted diamonds, as well as diamond-covered jewelry, to Costello Jewelry Company is a wonderful way to ensure that your jewels will continue to shine for a lifetime.

diamond buying

GIA-Certified Loose Diamonds Available at Costello Jewelry Company

In addition to offering diamond buying services, Costello Jewelry Company is proud to offer an array of gleaming GIA-certified loose diamonds in both their Illinois locations. Featuring round, princess, pear, oval, radiant, cushion, and more popular stone sizes, the loose diamonds on display at Costello Jewelry Company are second-to-none in brilliance, sparkle, and shine.

Hand-picked for quality and condition by a team of GIA graduate gemologists, the diamonds at Costello Jewelry Company make the perfect complement to any piece of bridal jewelry, fashion jewelry, or custom made fine jewelry item. Customers interested in the loose diamond selection available can explore the "Diamond" page of Costello Jewelry Company, or see the collection for themselves in both the Naperville and Glen Ellyn showrooms today!

couple buying diamond

Why Choose Costello Jewelry Company?

Founded in 1979, Costello Jewelry Company has made a name for themselves as one of the leading suppliers of authentic designer-made jewelry items in the greater Chicago area. Located in Glen Ellyn and Naperville, Illinois, the friendly and professional staff of Costello Jewelry Company are committed to bringing their customers the absolute best in fine jewelry service, selection, and quality. In addition to diamond buying and selling services, Costello Jewelry Company also offer an array of fine jewelry services, meant to ensure the long life of all purchases. Including in-house jewelry repair, watch repair, appraisals, and skillfully done custom jewelry making services, Costello Jewelry Company is the region's one-stop shop for all fine jewelry needs.

Further, as an authorized retailer of some of today's hottest designers such as Carl F. Bucherer, Tacori, Simon G, Coast Diamond, Raymond Weil, and many others, individuals searching for the perfect engagement ring, wedding band, timepiece, or fashion jewelry, are sure to find exactly what they're looking for.

For more information on the diamond buying and selling services available at Costello Jewelry Company, please call 866-790-3272, submit a question at the "Contact Us" page, or visit Costello Jewelry Company today, located in Glen Ellyn and Naperville, Illinois.

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