The Diamond Center, located at 147 Yale Ave, Claremont, CA 91711, is renowned for its exceptional service in engagement ring creation. With a focus on quality and customization, the team at The Diamond Center, including owner Ray Lantz and other knowledgeable staff, is dedicated to helping clients find or create the perfect engagement ring. They offer a variety of services including custom jewelry design, cleaning, repairs, and gemstone sourcing, all tailored to meet customer preferences.

Operating hours are as follows:
- Monday: Closed
- Tuesday: 10:00 AM - 6:00 PM
- Wednesday: 10:00 AM - 4:00 PM
- Thursday: 10:00 AM - 6:00 PM
- Friday: 10:00 AM - 6:00 PM
- Saturday: 10:00 AM - 4:00 PM
- Sunday: Closed

Reviews suggest the store has a loyal customer base, leveraging a strong reputation for crafting beautiful engagement rings and providing excellent service. Some comments praise the attentiveness and expertise of the staff, highlighting the comfortable shopping experience. However, there are also instances where customers felt that service was condescending, particularly regarding pricing and the implications of gem certification.

Overall Sentiment from Online Customer Reviews:
- Positive: 80%
- Neutral: 10%
- Negative: 10%

Best Review: A customer expressed gratitude towards Ray and the team for their outstanding support in selecting an engagement ring, noting the team's attentiveness and willingness to go above and beyond.

Worst Review: A reviewer shared disappointment with the treatment received, feeling that they were pressured and condescended to during their visit, which left a negative impression.

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