Ngoc Quang Diamonds and Gems, located at 9200 Bolsa Ave, Ste 109-110, Westminster, CA 92683, is a reputable jewelry store known for its exceptional engagement ring creation services. With over 189 reviews and a stellar rating of 4.7, the store has garnered a solid reputation for its quality jewelry and attentive customer service. Operating in Orange County, the shop offers a wide selection of GIA-certified diamonds, gold jewelry, and in-house repair services.

The staff is consistently praised for their friendly and knowledgeable service, with many customers highlighting the helpfulness of Chi Thuy, who is noted for her expertise in ring selection. The store is committed to ensuring customers find both the perfect engagement ring and a pleasant shopping experience.

Frequently mentioned customer feedback highlights the store's positive atmosphere and fair pricing. However, some reviews indicate concerns regarding buy-back policies and quality issues related to specific transactions, warranting caution for potential buyers expecting guaranteed resales.

Operating Hours:
- Monday: 10:30 AM - 5:30 PM
- Tuesday: 10:30 AM - 5:00 PM
- Wednesday: 10:30 AM - 5:30 PM
- Thursday: 10:30 AM - 5:30 PM
- Friday: 10:30 AM - 5:30 PM
- Saturday: 10:30 AM - 5:30 PM
- Sunday: 10:30 AM - 5:30 PM

Staff Members: Chi Thuy

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

Best Review: A customer praised the exceptional service received at Ngoc Quang, highlighting the welcoming atmosphere and the friendly guidance provided by Chi Thuy, particularly when selecting an engagement ring that exceeded their expectations.

Worst Review: One customer expressed frustration over the store's buy-back policy, indicating a lack of adherence to the promised terms when attempting to resell a diamond ring, suggesting ethical concerns regarding their policies.

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