Costello Jewelry Company, located at 33 W Jefferson Ave, Naperville, IL 60540, operates in DuPage County and has become a highly regarded destination for those seeking to create custom engagement rings. With a wealth of positive feedback, the jeweler is known for its exceptional service and craftsmanship in jewelry creation. Customer interactions reflect a strong commitment to ensuring that each piece is perfectly tailored to individual tastes, often with the aid of professional staff members such as Ralph and Trisha, who are praised for their personable and knowledgeable approach.

In total, 307 reviews were analyzed, presenting a largely favorable view of the store's services. Customers frequently highlight the inviting atmosphere, excellent customer service, and high-quality craftsmanship. Many express appreciation for the ability to create or customize engagement rings, often mentioning how the staff goes above and beyond in assisting with their specific requests.

However, there were a few negative comments regarding service issues, including dissatisfaction with the handling of certain repairs and delays in communication.

Overall Sentiment from Online Customer Reviews:
Positive: 85%
Neutral: 10%
Negative: 5%

Best Review:
Khalid praised the jeweler for their quick, complimentary service when removing links from his watch bracelet, expressing gratitude for the friendly staff who made the experience enjoyable.

Worst Review:
Pamela reported a less favorable experience, noting issues with quality during a ring repair and a lack of communication regarding her husband's watch repair, which resulted in disappointment.

* For this overview, customer feedback was viewed on Yelp, Google, and Facebook.

| Operating Hours |
|-------------------------|
| Monday: Closed |
| Tuesday: 9:30 AM - 6:00 PM |
| Wednesday: 9:30 AM - 6:00 PM |
| Thursday: 9:30 AM - 8:00 PM |
| Friday: 9:30 AM - 6:00 PM |
| Saturday: 9:00 AM - 5:00 PM |
| Sunday: 12:00 PM - 5:00 PM |

Staff Members: Ralph, Trisha.