Treasure Island Jewelry, located at 557 Southland Mall, Hayward, CA, offers a variety of jewelry services with a focus on engagement ring creation. The store boasts a selection of real gold and diamond pieces, emphasizing affordability and quality. The staff, particularly noted for their helpfulness, strives to ensure customer satisfaction, though experiences vary. While many customers praise the competitive pricing and merchandise, others have expressed concerns about the quality, with some describing feelings of being misled regarding product authenticity.

The store operates in Alameda County and can be reached at (510) 786-2757.

Operating Hours:
- Friday: 10 AM - 9 PM
- Saturday: 10 AM - 9 PM
- Sunday: 11 AM - 7 PM
- Monday: 10 AM - 9 PM
- Tuesday: 10 AM - 9 PM
- Wednesday: 10 AM - 9 PM
- Thursday: 10 AM - 9 PM

Overall Sentiment from Online Customer Reviews:
The overall sentiment from online reviews appears mixed, with approximately 50% positive, 30% neutral, and 20% negative feedback.

Best Review:
Dana Nettles highlighted the best prices and quality of merchandise at Treasure Island Jewelry, praising the owner's expertise in the field.

Worst Review:
Victoria Moses raised concerns about feeling misled, claiming that the jewelry purchased was not as advertised, which resulted in dissatisfaction with the service.

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