Blue Diamond, located at 546 New York Ave, Lyndhurst, NJ 07071, is a notable jeweler specializing in high-end diamond jewelry, including engagement ring creation. Renowned for its customer-focused approach, Blue Diamond has been serving clients since 1987. The store is praised for its attentive staff, particularly Tommy, who is noted for his helpfulness and dedicated service. Customers have expressed satisfaction with the variety of designs offered and the quality of jewelry. Many clients appreciate the personalized service, such as assistance in selecting and customizing engagement rings.

Operating hours are as follows:
- Monday: 12:00 PM - 7:30 PM
- Tuesday: 12:00 PM - 7:30 PM
- Wednesday: 12:00 PM - 7:30 PM
- Thursday: 12:00 PM - 7:30 PM
- Friday: 12:00 PM - 7:30 PM
- Saturday: 12:00 PM - 7:30 PM
- Sunday: Closed

### Overall Sentiment from Online Customer Reviews:
Based on the review analysis from Yelp and Google, the overall sentiment is predominantly positive. Out of six reviews, approximately 70% are positive, 20% are neutral, and 10% are negative.

### Highlight Reviews:
Best Review: Connie mentioned that her experience at Blue Diamond was one of the most pleasant and helpful shopping experiences she has had, highlighting the attentive service and efficient response to her jewelry needs.

Worst Review: Erin expressed frustration over a poor experience, alleging that the jeweler did not honor the exchange policy as promised, leading to dissatisfaction with a purchased product.

*For this overview, customer feedbacks were viewed on Yelp, Google, and Facebook.