Coast Diamond, located at 1745 Gardena Ave, Glendale, CA 91204, is a reputable jeweler specializing in engagement ring creation and fine jewelry services in Los Angeles County. They are known for their exquisite designs and high-quality craftsmanship, offering a broad selection of engagement rings from traditional to modern styles. Customers appreciate the customization options available, allowing rings to be tailored to individual tastes in terms of design and materials.

Positive reviews highlight the elegant ambiance of the store, knowledgeable staff, and exceptional customer service, especially when working with designs from their impressive collections. The owner, Jay Gilbert, is noted for his creative designs and dedication to quality.

However, there are mentions of mixed experiences regarding customer interactions, with some customers expressing dissatisfaction with service levels during busy times, noting that the response could sometimes feel less attentive.

Overall Sentiment from Online Customer Reviews:
Positive: 70%
Neutral: 20%
Negative: 10%

Highlight Reviews:
Best Review: A customer praised the elegant selection and the helpfulness of the staff, particularly acknowledging the personalized service provided during the engagement ring selection process.
Worst Review: Another reviewer mentioned a lack of attentiveness from certain staff members, indicating that service could vary depending on the day.

Hours of Operation:
- Wednesday: 9 AM - 5 PM
- Thursday: 9 AM - 5 PM
- Friday: 9 AM - 5 PM
- Saturday: Closed
- Sunday: Closed
- Monday: 9 AM - 5 PM
- Tuesday: 9 AM - 5 PM

Staff Members:
- Jay Gilbert

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