Rainbow Gems, located at 8560 Vineyard Ave #206, Rancho Cucamonga, CA 91730, is a highly-rated jewelry store specializing in engagement ring creation and custom jewelry services. The owner, Daniel, is praised for his exceptional craftsmanship, attention to detail, and personalized service, making him a favorite among customers looking for custom-designed pieces. With a solid reputation built over 40 years, Rainbow Gems has garnered numerous positive reviews, emphasizing the quality and reliability of their work.

The store operates in San Bernardino County and extends its services to a variety of jewelry needs, including ring resizing, repairing, and appraising. Customers frequently highlight the friendly and professional atmosphere provided by the staff, ensuring each visit is a pleasant experience.

Overall Sentiment from Online Customer Reviews:
Positive: 90%
Neutral: 5%
Negative: 5%

The reviews reflect a strong sense of satisfaction among customers, with many noting the honesty and reliability of the services provided.

Best Review:
Katie noted that Rainbow Gems is her go-to place for jewelry repair and custom pieces, praising Daniel for his quick service and reasonable prices.

Worst Review:
One customer, Linda, expressed frustration over a damaged ring after resizing, indicating a negative experience that detracted from the otherwise positive feedback the store receives.

**Operating Hours:**
- Tuesday: 10:00 AM - 6:00 PM
- Wednesday: 10:00 AM - 6:00 PM
- Thursday: 10:00 AM - 6:00 PM
- Friday: 10:00 AM - 6:00 PM
- Saturday: 10:00 AM - 2:00 PM
- Sunday: Closed
- Monday: Closed

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