Lake Street Diamond Company, located at 106 Lake St, Kirkland, WA 98033, operates in King County and has built a solid reputation over more than 35 years for excellence in engagement ring creation and personalized service. The store offers a welcoming atmosphere, focusing on building relationships rather than just making sales. Staff members, including the skilled jeweler Vince, are known for their expertise in designing custom pieces, guiding customers through all aspects of selecting diamonds and settings. The business is also praised for its ability to provide quick turnarounds on repairs and custom designs.

Operating Hours:
- Tuesday: 10:30 AM - 5:00 PM
- Wednesday: 10:30 AM - 5:00 PM
- Thursday: 10:30 AM - 5:00 PM
- Friday: 10:30 AM - 5:00 PM
- Saturday: 12:00 PM - 6:00 PM
- Sunday: Closed
- Monday: Closed

Overall Sentiment from Online Customer Reviews:
Positive sentiment is noted in approximately 90% of reviews, with a significant number praising the outstanding customer service, craftsmanship, and the personalized approach to engagement ring creation. Neutral responses account for about 5%, while negative feedback represents around 5% of online opinions, mainly concerning pricing and a singular unsatisfactory experience with service.

Best Review:
Disha mentioned the store's efficiency in resizing her ring, highlighting the quick turnaround time and excellent customer interaction, praising the staff for treating her like a long-standing customer.

Worst Review:
Boris expressed disappointment with the new ownership, suggesting that they seem more focused on small profits rather than customer relationships, indicating a shift from past experiences in the store.

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